Final answer:
To determine the cost of wrapping each small gift and large gift, we need to set up a system of equations and solve for the cost variables.
Step-by-step explanation:
To find out how much they charged to wrap the gifts, we need to determine the cost of wrapping each small gift and each large gift. Let's suppose the cost of wrapping a small gift is x dollars and the cost of wrapping a large gift is y dollars.
From the given information, we can set up a system of equations:
45x + 19y = 396
45x + 17y = 378
Solving this system of equations will give us the values of x and y.