Elena says that equations a and b are not equivalent. equation a: 13-5x 48 equation b: 5x = 35 write a convincing explanation as to why this is true.

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.

Acircular garden with radius of 8 feet is surrounded by a circular path with a width of 3 feet. what is the approximate area of the path alone? use 3.14 for π

Issof claims that the scale factor is 1/2. which statement about his claim is correct