Level 2
Mark went shopping with some money. The amount of money he brought along was just enough to buy 6 similar files. However, he spent $4.20 on a scarf and $6.85 on a shirt. He then had $22.55 left. What was the price of each file?
Level 3
Jenny's mother gave her $2 to buy 2 pears. Instead, Jenny bought 3 pears and received twenty cents as change. How much change would Jenny receive if she had bought 2 pears?