We know that Molly paid $3.60 for 8 apples, that means that $3.60 is consisted of 8 equal prices (each price is equal to the cost of one apple). From here we can make an equation.
Let "a" be the price of one apple, then
8a = $3.60
8a / 8 = $3.60
a = $0.45
Now we know that Molly paid $0.45 for each apple in the bag.
