Atrapezoid has height h. one base is 2 units longer than the height. the other base is 3 times longer than the height . write a polynomial for the area of the trapezoid. a.4h^2+2h b.2h^2+h. c.2h^2+1 d.2h^2+2h

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.