Aqua blue paint costs $1.50 per square inch. How much more money would it cost to paint a bowling ball with a radius 4.2913 inches in length than to paint a tennis ball with a radius 1.2598 inches in length? Round your answer to the nearest cent.

A ball is a sphere, so its surface area is 4πr². The difference in surface area is 4π(4.2913² − 1.2598²) ≈ 211.47 square inches. At $1.50 per square inch, the additional cost is about 211.47 × $1.50 = $317.20, so the answer is $317.20.

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