It cost Randy $515.20 for new carpet in his bedroom. If the room is 11.5 feet wide by 14 feet long, what was the cost per square foot?

$3.20

Step-by-step explanation:

First, find the area in square feet of his room:

Use the area formula, A = lw, where l is length and w is width:

A = lw

A = 14(11.5)

A = 161

So, his room is 161 square feet.

To find the cost per square foot, divide 515.20 by 161:

515.20/161

= 3.2

So, the cost per square foot was $3.20

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step-by-step explanation: