Final answer:
To find the cost of each apple, divide the total cost of the apples by the number of apples bought.
Step-by-step explanation:
To find the cost of each apple, we need to divide the total cost of the apples by the number of apples bought. Lily bought 3 pounds of apples, and each pound of apples weighs approximately 10 apples. So, the total number of apples = 3 pounds * 10 apples/pound = 30 apples. The total cost of the apples = 30 apples * $3.58/apple = $107.4. Finally, to find the cost of each apple, we divide the total cost by the number of apples: $107.4/30 = $3.58.
Therefore, each apple costs $3.58.