PA-HELP PO PLS! NONSENSE ANSWER- REPORTED

7. There are 150 enrollees in Grade 7, 170 enrollees in Grade 8, 190 enrollees in Grade 9 and 210 enrollees in Grade 10. What is the total number of enrollees in the Junior High school?
A.720 B. 710 C. 700 D. 690

8. Liam climbed up a mountain. His initial altitude was 50 m above sea level, and it increased by 10 m every hour. The scenario represents
A. Arithmetic C. Geometric B.Fibonacci D. Harmonic

For numbers 9 – 10, A basketball is dropped from the top a 20 feet building. If the ball hits the ground, it bounces exactly 50% of its previous height.

9. How high is the 3rd bounce of the ball?
A. 10 B. 5 C. 2.5 D. 1.25

10. How many feet the ball travels before it rests? A. 60 B. 40 C. 20 D. 10​