Between which two numbers is the quotient of 87 / 5 ? write the numbers in the boxes

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !

This is about circle theorems. someone asap : (

In order for the function to be linear, what must m be and why? m = 22 because the rate of change is 1. m = 20 because the rate of change is 3. m = 22 because the rate of change is -1. m = 20 because the rate of change is -3.