Can someone pls help me with this?!

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10

Acarton of juice contains 64 ounces miss wilson bought six cartons of juice how many ounces of juice did she buy

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.