Answer:
Size A: $2.1
Size B: $2.5
Size C: $2.9
Size D: $2.8
Size A is the best buy because 1 ounce of salmon costs $2.1 which is the lowest price of the 4 sizes.
Explanation:
Size A:
7.2 divided by $3.49 = $2.1
Size B:
16.5 divided by $6.49 = $2.5
Size C:
24.75 divided by $8.49 = $2.9
Size D:
30.666666667 divided by $10.99 = $2.8
so, you're trying to find the best buy, the least money for one ounce of salmon. the least amount would by size A because ounce ounce costs $2.1.