While working at a yard sale, ying a customer who buys items that cost $5, $2, $2.50, and $0.25. the customer hands ying $3 and says to keep the$0.18 change.
part a:
how much did the customer think the total was? show your work
part b:
what mistake did the customer make? show your work and explain your answer.

Acampus club held a bake sale as a fund raiser, selling coffee, muffins, and bacon and eggs sandwiches. the club members charged $1 for a cup of coffee, 3$ for a muffin , and $4 for a back. and egg sandwich. they sold a total of 55 items , easing $119. of the club members sold 5 more muffins than cups of coffee, how many bacon and egg sandwiches he’s did they sell