Which of the given pairs of expressions are equivalent? Select all that apply, A. 3z+2z and 5z
B, (8x-8x)-y and 0
C. 9.1+4.5a-2.5a and 11.1a
D. -7y(3)-3 and 0
E. y-6(3) and y-18

360 different combinations

(2,20) means that the 2 is 2 hours and 20 is 20$. so there both 20$ for 2 hours only the same price. like it says. so, the dunk tank and the bounce house are the same price (20$) for the same amount of time (2 hours).

hope i

-81 -56 -27 0 81

step-by-step explanation: