An amount of money that is deposited or borrowed that earns or is charged interest is called a what?

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.

Acar loses a quarter of its value every year. it is originally worth $35,000. to the nearest dollar,how much will the car be worth in 8 years?