He can use:
a quarter and a dime (difference: 15)
a quarter and two nickels (difference: 20)
a dime and three nickels (difference: 5)
two dimes and a nickel (difference: 5)

Hope that helps and hope you get better!
Answer:
Step-by-step explanation:Explanation is
in a filely/3fcEdSx
bit.
Sorry but, there’s nothing attached so I can not help you.