Math

What is the difference in price per cubic inch?

A family-sized box of cereal with dimensions 3x9x12 inches costs $6, while the regular size with dimensions 2 x 8 x 9 inches costs $4.50.

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  1. 6.00/(3x9x12) - 4.50/(2x8x9) = ?

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  2. -0.01273148148?

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