Calculating the Amount of Gasoline in a Tank A Shell station stores its gasoline in underg...

Calculating the Amount of Gasoline in a Tank A Shell station stores its gasoline in underground tanks that are right circular cylinders lying on their sides. See the illustration. The volume V of gasoline in the tank (in gallons) is given by the formula

where h is the height of the gasoline (in inches) as measured on a depth stick.

(a) If h = 12 inches, how many gallons of gasoline are in the tank?

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(b) If h = 1 inch, how many gallons of gasoline are in the tank?