WILL GIVE BRAINLIEST! use the given diagram to determine the segment lengths

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

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.

What is negative 3/9 times negative 2/8 ?