Annie plans to purchase a car that will cost her $16,000. After putting down a 20% down payment, how much will Annie need to finance?

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Simplify. −4x^2 (5x^4−3x^2+x−2) −20x^6−12x^4+8x^3−8x^2 −20x^6+12x^4−4x^3+8x^2 −20x^8+12x^4−4x^2+8x −20x^6+12x^4+4x^3−8x^2

An airplane travels at an unknown elevation before it descends 3 miles to an elevation of 15 miles. find the elevation of the plane before its descen.