Erica is working the concession stand. She sold 6 bags of chips, 14 apples, and 3 juice boxes. She has $12.05 in the cash register. How many sandwiches has she sold?
Erica sold $8.05 all together for the 6 bags of chips, 14 apples, and 3 juice boxes. Since the remaining amount is how many sandwiches were sold, and 12.05 - 8.05 is 4, Erica sold 4 sandwiches.
