Which situation cannot be represented by the equation x + 10 = 45?

And employee salary increased by $4500 which represents a 15% raise what is the rate of the increase

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.

Me i'm timed right now! there's 4 answer