pls need ko po ipa brienliest ko yung ans pls give matinong ans need ko talaga

1. Achilles is about to measure the number of kilometers he will drive in any number of hours at a constant speed. What is the independent variable given the situation above?

A. Time
C. Acceleration
B. Speed
D. Distance travelled

2. I sleep is a dependent variable on how long the phone is used before bedtime what must be its independent variable?

A. number of phones used
B. number of hours a week
C. number of hours sleeping
D. number of hours using the phone ​