What is the value of m that makes the equation true?

5^m x (5^-7) =5^12

Abiologist is recording the loss of fish in a pond. he notes the number of fish, f, in the pond on june 1. on july 1 there were 63 fish in the pond, which is 52 fewer fish than were in the pond on june 1. which equation represents this situation? a. f – 52 = 63 b. f – 63 = 52 c. 63 – f = 52 d. f – 63 = –52

Can someone me do math because i am having a breakdown rn because i don’t get it

What is the value of x? enter your answer in the box.