8. The eighth-grade class had a bake sale. They sold 55 bars and cookies altogether and made
$115. Each bar cost $3 and each cookie cost $1. How many bars ad how many cookies did they
sell?
a. 10 cookies, 30 bars
b.
15 cookies, 40 bars
C.
20 cookies, 40 bars
d. 25 cookies, 30 bars
