To determine how many pounds of apples Bill can buy, you can set up an equation based on the total cost of the apples he wants to buy. He has $5 to spend, and the apples cost $1.25 per pound.
The equation can be set up as follows:
Cost per pound * number of pounds = Total amount to spend
1.25 * x = 5
This corresponds to option A:
A. 1.25x = 5
To solve for x (the number of pounds), you would divide both sides of the equation by 1.25:
x = 5 / 1.25
x = 4
So, Bill can buy 4 pounds of apples.