What is the amplitude of the graph of the equation y=3cos2x?

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

List the sides of δrst in in ascending order (shortest to longest) if: a ∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12°

Angela is buying a dress that is on sale for 20% off. if the original price of the dress is $40.00, how much money is angela saving on the dress? a. $0.80 b. $3.20 c. $32.00 d. $8.00