Tells how fast a line rises or falls between any two points on that line

Someone . me. compound probability

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.

Somone me i want to know what 18 hours out of 24 hours in a fraction