what do you mean by environment??​

a student places 8 similar coins in a pile . the height of the pile of coins is 2.4 cm calculate the average thickness of one coin Please help. I am very confused about this problem. if a/4=2/3, then (a-4)/4 would equala. -2/3b. -1/3c. 0d. 1/3 Stuck on this one. I cant remember the process to get the answer This exercise involves the formula for the area of a circular sector. The area of a circle is 700 m2. Find the area of a sector of this circle that subtends a central angle of 3 rad. plz answer the question Find the volume of a regular square pyramid with base edge 10 ft. and height 12 ft.120 ft75ft?400 ftD 300 ft? What was the issue with Fort Sumter no links no putting anything need the answer fast Approximately how long will it take $200 to double to $400 when the annual interest rate is 8 1/2? Plz help me solve this How many quarts of pure antifreeze must be added to 8 quarts of a 40% antifreeze solution to obtain a 60% antifreeze solution what is 1 6/9 +5 9/7 Point Q is the midpoint of GH. GQ=2x+3, and GH=5x5 .What is the length of GQ? Nate is writing an essay arguing that the football program at his school should be canceled for safety reasons. Which is the most effective claim for his argument? Our school should not have a football team because research shows that twenty percent of students will suffer at least one concussion during their high school playing career, which can have dangerous and permanent effects. Many people are very proud of our school's football team, and they came close to winning the district title last year, but that doesn't take away from the fact that our high school should not field a football team. Football can be a dangerous and risky sport at any level, and other sports, such as basketball and field hockey, are much better choices for students. Football is fun and provides students with a sense of unity, but it can also be a dangerous game for many reasons, including the fact that many students suffer concussions while they are playing. If f(x)=2x+3 and g(x)= x^2-8find (f+g (x) For each of the following transactions below, prepare the journal entry (if one is required) to record the initial transaction and then prepare the adjusting entry, if any, required on September 30, the end of the fiscal year. (Credit account titles are automatically indented when the amount is entered. Do not indent manually. If no entry is required, select "No Entry" for the account titles and enter 0 for the amounts.)(a) On September 1, paid rent on the track facility for three months, $213,000. (b) On September 1, sold season tickets for admission to the racetrack. The racing season is year-round with 25 racing days each month. Season ticket sales totaled $840,000. (c) On September 1, borrowed $300,000 from First National Bank by issuing a 6% note payable due in three months. (d) On September 5, programs for 20 racing days in September, 25 racing days in October, and 25 racing days in November were printed for $3,500. (e) The accountant for the concessions company reported that gross receipts for September were $160,000. Eight percent is due to the track and will be remitted by October 10. Yall know the answer? A camera lens with focal length f = 50 mm and maximum aperture f>2 forms an image of an object 9.0 m away. (a) If the resolution is limited by diffraction, what is the minimum distance between two points on the object that are barely resolved? What is the corresponding distance between image points? (b) How does the situation change if the lens is stopped down to f>16? Use = 500 nm in both cases 1. What are the layers of the atmosphere?2. Do you think, living organisms can live without the atmosphere? 3 . What is a greenhouse? How does it work?4. What do we mean by greenhouse effect? 5. What will happen if greenhouse gases absorb too much heat and radiate it back to earth? Malik wanted to give away \frac{1}{5} 5 1 of his bag of balloons to his 3 friends. What fraction of balloons will he give away?