The local grocery store sells different sizes of peanut butter. Find the unit prices for each size container, and then identify the best deal. 12 oz: $ per oz 16.3 oz: $0.38 per oz 28 oz: $ per oz 64 oz: $ per oz Which size is the best deal?

You have 2 sides that are 2 cms and you have 6 sides that are 1/2 cm and you have 4 sides that are 1 cm. the smallest sides are 1/2 the medium sized sides are 1 and the smallest are 1/2. so to find the perimeter you have to add them all up together so your answer will be 11 cm's