Help please will mark brainliest

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.

How do you convert 1.27 to a percentage

James was playing a game with his friends. he won 35 points. then he lost 15, lost 40 and won 55. how did he come out