Final answer:
To find the cost per pound, divide the total cost of the salmon by the weight in pounds.
Step-by-step explanation:
To find the cost per pound, we need to convert the weight of the salmon from ounces to pounds. Since there are 16 ounces in 1 pound, we can divide the weight of the salmon by 16 to get the weight in pounds. In this case, the salmon weighs 20 ounces, so the weight in pounds is 20/16 = 1.25 pounds.
Next, we divide the total cost of the salmon by the weight in pounds to find the cost per pound. In this case, the cost of the salmon is $8.20, so the cost per pound is $8.20/1.25 = $6.56.