### Home > CC2MN > Chapter 9 Unit 9 > Lesson CC2: 9.2.1 > Problem9-57

9-57.

Red apples cost $\1.20$ per pound and green apples cost $\1.50$per pound.  Homework Help ✎

1. Write an expression to represent the total cost of $x$ pounds of red apples and $y$ pounds of green apples.

$1.20x+1.50y$

2. What is the total cost if you buy $3$ pounds of red apples and $2$ pounds of green apples?

Substitute $3$ for $x$ and $2$ for $y$.

$1.20(3)+1.50(2)=\\ 3.60+3.00=\\ 6.60$