Cam's Cupboard grocery store is having a sale on canned goods. Tiana decides to stock up and purchases 12 cans of soup. During the sale, cans of soup sell for $0.55 less than full price. Tiana pays a total of $13.20 for the cans of soup.
Which equation can you use to find the amount, f, each can of soup costs at full price?
How much does each can of soup cost at full price?
Let f be the cost of each can of soup at full price.
The total cost of 12 cans of soup at full price is 12f.
During the sale, each can of soup sells for $0.55 less than full price, so the sale price is f - $0.55.
Tiana pays a total of $13.20 for the 12 cans of soup, so the equation is 12(f - $0.55) = $13.20
Simplifying the equation, we get 12f - $6.60 = $13.20
Adding $6.60 to both sides, we get 12f = $19.80
Dividing both sides by 12, we get f = $1.65
Each can of soup costs $1.65 at full price. Answer: \boxed{1.65}.