Question

each side of a square classroom measures 15 feet. the teacher wants to put a border around the top of the classroom that costs $2.00 per foot. how much will the border cost?

Explanation:

Step1: Calculate the perimeter of the square

The perimeter formula for a square is \(P = 4s\), where \(s\) is the side length. Given \(s = 15\) feet, so \(P=4\times15 = 60\) feet.

Step2: Calculate the cost of the border

The cost per - foot is \(\$2\). Using the formula \(C=\text{cost per foot}\times\text{perimeter}\), we substitute the values. \(C = 2\times60=\$120\)

Answer:

\(120\)