3 (x-3)=6 solve for x

Acable car begins its trip by moving up a hill. as it moves up, it gains elevation at a constant rate of 50 feet/minute until it reaches the peak at 2,000 feet. then, as the car moves down to the hill’s base, its elevation drops at the same rate.

Acredit card advertises an annual interest rate of 23%. what is the equivalent monthly interest rate?

Find the roots of the polynomial function f(x) = x^3 + 2x^2 + x