At store 1 i can buy 36oz of baby formula for 26.62 and at store 2 i can buy 28oz of baby formula for 22.42.which one is a better buy and by how much?

Ur looking for the unit rate hereur looking for dollars per ozdollars/oz

store 1 : dollars / oz26.62 / 36 = 0.739 rounds to 0.74 per oz
store 2 : dollars / oz22.42 / 28 = 0.80 per oz

so the better buy, the cheapest one is : store 1, 26.62 for 36 oz <==