One brand of canned beans is sold in four different sizes.
The 7-ounce can costs $3.49
The 16-ounce can costs $6.49
The 24-ounce can costs $8.49
The 30-ounce can costs $10.99
Calculate the unit cost (cost per ounce) for each size. Round each unit price to the nearest cent. Then determine which size can is the best buy (best value)
$3.49/7oz = $0.498/oz
do the same with the others, then find the lowest.