To determine which fish Sasha bought, we can calculate how much the ¾ lb. of each type of fish would cost.
-
Salmon:
- Price per lb: $9.60
- Cost for ¾ lb: \( 9.60 \times \frac{3}{4} = 9.60 \times 0.75 = 7.20 \)
-
Whitefish:
- Price per lb: $7.20
- Cost for ¾ lb: \( 7.20 \times \frac{3}{4} = 7.20 \times 0.75 = 5.40 \)
-
Swordfish:
- Price per lb: $8.40
- Cost for ¾ lb: \( 8.40 \times \frac{3}{4} = 8.40 \times 0.75 = 6.30 \)
-
Haddock:
- Price per lb: $6.90
- Cost for ¾ lb: \( 6.90 \times \frac{3}{4} = 6.90 \times 0.75 = 5.175 \)
Now we can summarize the calculated costs:
- Salmon: $7.20
- Whitefish: $5.40
- Swordfish: $6.30
- Haddock: $5.175
Sasha spent $5.40, which matches the cost of ¾ lb. of Whitefish.
Thus, Sasha chose Whitefish.