Please help! I will mark as brainliest IF answer is right. <3

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.

Aline passes through 3,7 and 6,9 what equation represents the line

Abcd is a square. what is the measure of angle bac