please help due in 20 mins!! I need to give 5 statements & reasons. I’m so confused someone plz help!

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

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.

Segment xy is dilated through point m with a scale factor of 2. which segment shows the correct result of the dilation