You and your friends have your own business. You want to put an ad in the local paper. The cost is $2.25 per square inch. Your ad is 6 inches by 8 inches. How much will the ad cost?

Answer:
$108.00

Explanation:

You can solve this problem by finding the area of the rectangular advertisement, using the formula: A = b * h. Once you have the area in square inches, you can multiply by the cost per square inch.