Answer
$20.16
Solution
The cost of 2.5 pounds of cheese is $5.60. From the given data we can find the cost of 1 pounds of cheese.
The cost of 1 pounds of cheese = $5.60./2.5 =2.24
Mrs Peterson bought 9 pounds of cheese for her deli
we need to find cost of 9 pounds of cheese .
So she spends total = 2.24 x 9 = $20.16
