The area is A. 84 square inches
Answer:

Step-by-step explanation:

I hope I helped you^_^
Force = mass x exceleration
1100 x 0.5 = 550
Answer: m=-1/2 which is the slope
Step-by-step explanation:
Answer: 22 Levels
Step-by-step explanation: He would need to go one level higher just to get to level one, and another 21 to get to the level that he wants to, so the total would be 22 levels.