In one year, 144 of the people enrolled in a college went on a winning outreach during the college year. it was 4/5 of the people enrolled in the college. how many of those enrolled in the college did not go on the outreach?

i know it's long, i'm sorry.
you : )

Suppose that the price p (in dollars) and the weekly sales x (in thousands of units) of a certain commodity satisfy the demand equation 4p cubedplusx squaredequals38 comma 400. determine the rate at which sales are changing at a time when xequals80, pequals20, and the price is falling at the rate of $.20 per week.