Question

12 points, help plz.

Here is a number machine.
Input x5
Output -3

a) work out the output when the input is 8

b) work out the input when the output is 42

Answer 1

Explanation:

ty for the free points tho

Answer 2

thought it would be 7.8, could be wrong not sure

Explanation:

42 -3= 39/5=7.8