Where did China's first civilization develop?
a. along the Chang River
b. on the North China Plain
c. on the Plateau of Tibet
d. in the Gobi Desert

if we vibe for 3 hrs and become freinds how long will we be freinds? Carlos and Lily want to know the combined amount of money they made last week. They both made $12 per hour, but Carlos also made a $35 bonus. Carlos says the combined amount is 12C + 35 + 120 where Cis the number of hours he worked, and L is the number of hours Lily worked. Lily says the combined amount is 12(C+ L) + 35. Who is right? Explain. a train travels 16 miles in 20 minutes how many minutes would 12 miles be Please help me please Jeremy received a Bill with a balance due of 25.60 Help please- Ill luv you forever Use the GCF (Greatest common factor) to factor the expression 3.02+ 8x Order of Operation10) An electrician charges $45 per hour and spends $20 a day on gasoline. If he worked for seven hours, write an algebraic expression to represent his earnings for the day. A music collection includes 19 ROCK CDs, 12 COUNTRY CDs, 6 CLASSICAL CDs, and 5 HIP HOPCDs. What is the probability that a CD randomly selected from the collection IS a classical CD? what is 8333333333/100000000000 simplified? It might be hard but I need help and it's for tonight. Thanks! The markings on the number line are evenly spaced. Label the other markings on the number line. Estimate the sum or difference.7/8-1/5 Tom has a 4-sided spinner and the table below shows the probabilitiesthat when the spinner is spun it will land on 1, 3 and on 4Number1234Probability0.10.20.4The spinner is spun once.a) What is the probability that the spinner will land on 2?Il(1)b) Which number is the spinner least likely to land on?(1)c) If Tom spins the spinner 80 times, work out anestimate for the number of times the spinner will land on 3(2) (-2+6y+3x)(-3) distributive property to remove the parentheses Evaluate the expression The value of a car decreases by 5% each year. Sophie bought a car two years ago for 10000. Work out the value now. WHERE IS THE ERIE CANAL LOCATEDD!?!?!?!?!? PLEASE HELPPPP Which fraction does point A show?A.3/7B.3/4C.8/5D.7/4 A penguin starts at 15 meters above sea level and ends at 7 meters below sea level. What is the change in elevation? Read the following passages:Passage AAn excerpt from Katherine Johnson's autobiographyI remember it like it was yesterday. Everyone was so nervous. John Glenn and his crew would be the first American Astronauts to orbit the Earth, and it was up to me to make sure they were safe. The computer was supposed to calculate the numbers. I was supposed to be watching the launch in my living room with the rest of the country, but not everything goes as planned. The computers were new, and not everybody, especially Mr. Glenn trusted them.I got the call to check the numbers right before the launch. I was honored but terrified that Mr. Glenn asked for me personally. The country, although they didn't know it, was counting on me. I took a deep breath and did the work I did every day. I computed the numbers. Luckily, the numbers matched and with my assurance, John Glenn and his crew launched up into space. The rest was history.Passage BKatherine Johnson's story took too many years to be told. Very few people realize that her genius can be thanked for modern space exploration. In fact, John Glenn refused to launch his historic 1962 orbital mission without her telling him it was safe. The computer was just invented, and it was the first time it was used to calculate something so important. Before the computer, the math was done by NASA employees, many of them women. John Glenn trusted Katherine before any computer. Even when everyone else assured him that the math was correct and he would be safe, he refused to put himself and his men in danger without Katherine checking the work. Because of her, and many of the hidden figures like her, the United States began to lead the space race.What additional information does the reader gain from Passage A that is not included in Passage