Question

STOP WHATEVER UR DOING AND PLEASE HELP ME

Answer 1

Answer: Sarah.
d=rt
Miles = (miles/hour)(hour)

So Timmy is driving 70mph

Sarah:
75 = r (1), r = 75mph
150 = r(2), r = 75mph

Let me know if you have questions

Answer 2

Sarah is faster.

Explanation:

Timmy travels 70 in 1 second.

Sarah travels 75 in 1 second.