Question

what is the value of the expression?
4^3 • 4 ^−5

A.
4^−15

B.
4^−2

C.
4^2

D.
4^8

i thought it was d. but im not sure what to do to solve -_- PLEASE HELP!!

Answer 1

You added 3 and -5 and got a sum of 8 . 

Do you still feel OK with that, or could you think about it
one more time just to make sure ?