This is my work so far but i believe i’m doing it wrong. i have to, “solve for x in the diagram”. need asap

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

An advertising firm has an old computer that can prepare a whole mailing in 6 hours. with the of newer model the job is complete in 2 hours. how long would it take the newer model to do the job alone?

Let f(x) = 3 − x . find the average rate of change of f(x) from x = a to x = a + h and simplify your answer so that no single factor of h is left in the denominator.