Please help with this exercise

A buffer is prepared such that [H2PO4-] = 0.095M and [HPO42-] = 0.125M? What is the pH of this buffer solution? (pKa = 7.21 for H2PO4-) Sammy the Sailor swears entirely too much. The following probability distribution shows the number of times Sammy swears per day and the corresponding probabilities:# of swear words: 2 5 9 14 20Probability: 0.01 0.09 0.30 0.40 0.20In an effort to reduce his amount of swearing, Sammy places $1.00 in a jar every time he swears. Further, if at the end of the day he swears more than 10 times, he places an extra $2.00 in the jar per swear word over 10. If Sammy swears less than 5 times, he takes out $0.50 for each of his swear words.A B C D E F G1 # of swear word Probability2 Cost per swear word $1.00 2 0.013 Extra cost per swear word over 10 $2.00 5 0.094 Refund per swear word less than 5 $0.50 9 0.35 14 0.46 20 0.2789 # Regular Extra cost Refund Total swear swear if over 10 if under moneywords word swear 5 swear in the jar cost words words for theday 10 Based off the partial simulation spreadsheet above, answer the following questions: A) What formula should go into cell C10 to calculate the Regular Swear word cost? B3*B4 SUMPRODUCT(B2:B4, B10) B4*B10 SUM(B2:B4) B2*B10 B3*B2 B3*B10 B) What formula should go into cell D10 to calculate the Extra Swear word cost? =IF(B10>10,(B10-10)*B3,0) =IF(B10>10,(10-B10)*B3,0) =(B10-10)*B3 =IF(B10>10,0,(B10-10)*B3) SUMPRODUCT(B10,B3) B10*B3 C) What formula should go into cell E10 to calculate the Refund amount? B10*B4 =IF(B10>5,(B10-5)*B4,0) =IF(B10 Modern mathematical systems spread outward from India via A professor, with dumbbells in his hands and holding his arms out, is spinning on a turntable with an angular velocity. What happens after he pulls his arms inwards Which constants could each equation be multiplied by to eliminate the x-variable using addition in this system of equations? 2x+3y=25 -3x+=22 first equation can be multiplied by 3 and the second equation by 2. The first equation can be multiplied by 4 and the second equation by 2. The first equation can be multiplied by 3 and the second equation by 2. The first equation can be multiplied by 4 and the second equation by 3. Use the motion map to answer the question.Which scenario could be represented by the motionmap?O A car speeds up to merge onto the freeway andthen continues at a constant velocityO A car speeds up to pass a truck, then slows downto a constant velocity.O A car slows to stop at a stop sign. Once traffic isclear, the car speeds up.O A car slows to makes a U-turn, then continues inthe opposite direction. We need to understand the past so that we might better assess the: challenges of the past and the present challenges of the present and the future opportunities of the present and the future opportunities of the past and the present ASAP How can I divide decimals and fin the correct quotient and remainder.? What is the verb?A. Went/Did succeedB. Didn't succeedC. To work 1. Is this an example of an independent or dependent clause? my mom is picking me up after school independent clause dependent clause 2. Is this an example of an independent or dependent clause? wherever you want to eat independent clause dependent clause 3. This sentence has an independent and dependent clause. Is it punctuated correctly? Though I hate beans, I love eating chili. Yes No Not enough info given A young sumo wrestler decided to go on a special high-protein diet to gain weight rapidly. When he started his diet, he weighed 79.5 kilograms. He gained weight at a rate of 5.5 kilograms per month. Let y represent the sumo wrestler's weight (in kilograms) after x months. Which of the following could be the graph of the relationship? graph of an increasing linear function in quadrant 1 with a positive y-intercept (Choice B) B graph of an increasing linear function in quadrants 1 and 4 with a positive x-intercept and negative y-intercept (Choice C) C graph of a decreasing linear function in quadrants 1 and 4 with a positive x-intercept and positive y-intercept (Choice D) D graph of a decreasing linear function in quadrant 4 with a negative y-intercept I need help with the following question Which of these conditions helped establish the foundation for a market revolution in the United States PLEASE HELP QUICK, WILL MARK BRAINLIEST!Solve for x: 6 < x 1 < 9 5 < x < 10 5 < x < 10 5 > x > 10 5 > x > 10 Identify whether the sampling method is simple random, systematic, stratified, cluster, or convenience. Explain. In a nationwide study of registered voters conducted by The New York Times, 390 people are randomly selected out of those registered as Republicans, 430 people are randomly selected out of those registered as Democrats, and 180 people are randomly selected out of those registered as Independents. HELP NOW LOOK AT SCREENSHOT Convert 76.2 kilometers to meters? How is india becoming more Americanized A corporation has 12,000 shares of $20 par stock outstanding that has a current market value of $150. If the corporation issues a 4-for-1 stock split, the market value of the stock will fall to approximately $50.a. Trueb. False Lexie, a bowler, claims that her bowling score is more than 140 points, on average. Several of her teammates do not believe her, so she decides to do a hypothesis test, at a 5% significance level, to persuade them. She bowls 18 games. The mean score of the sample games is 155 points. Lexie knows from experience that the standard deviation for her bowling score is 17 points. H0: =140; Ha: >140 =0.05 (significance level) What is the test statistic (z-score) of this one-mean hypothesis test, rounded to two decimal places?