What is -14x-7 idk I have tried everything

Part a : solve - vp + 40 < 65 for v . part b : solve 7w - 3r = 15 for r show your work!

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.

Arectangular yard has area 96 square feet. if the width of the yard is 4 feet less than the length