A peanut butter jar in the shape of a right circular cylinder is 4 in. high and 3 in. in diameter and sells for $1. If we assume that cost is…

A peanut butter jar in the shape of a right circular cylinder is 4 in. high and 3 in. in diameter and sells for $1.20. If we assume that cost is proportional to volume, how much should a jar 6 in. high and 6 in. in diameter cost?

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