Can anyone help giving 5 stars lol

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.

Solutions for 2x+7 less than or equal to 3x-5

Which number line represents the solution set for the inequality -1/2x> 24?