Ahand held digital music player was marked down by 1/4 of the original price. a. if the sales price is $128.00, what is the original price? show full work

Sketch one cycle if the cosine function y=2cos2theta

Which statements describe the solutions to the inequality x< -20 check all that apply. there are infinite solutions. each solution is negative. each solution is positive. the solutions are both positive and negative. the solutions contain only integer values. the solutions contain rational number values.

The mass of a marine organism, in pounds, p years after it is born is given by the polynomial function r(p) = -4p2 + 300p. find the mass when p = 20 years.