1) Em um jogo de cards, Rafael tinha 54; perdeu 15 na primeira rodada e ganhou 12 na segunda rodada. * a) +54 -15 + 12 = +51

b) 54 + 15 + 12 = - 81​

(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

with btw u said 100pts but it clearly says

i answerd and just got 10pts

no hate

i dont know what you want me to answer for this but im guessing 2: 11?