Answer :
Buying 12-pack of 12-oz cans will be the better choice.
What is unitary method?
The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Given here , pack of 12 oz cans at $4.75 and hence volume of such 12 packs = 12 × 12 = 144 oz
and seven 20 oz bottles at $ 6.3 the volume is = 20 × 7 = 140 0z
Hence clearly 12-pack of 12-oz is the better choice
Learn more about unitary method here:
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