If you have 9 pennies 20 nickels 100 dimes and 15 quarters, how much money do
you have?
I won't do that exact problem. I'll do one just like it with different numbers:
If you have 12 pennies 34 nickels 87 dimes and 18 quarters, how much money do
you have?
Write them in a list like this:
12 pennies = 12×$0.01 = $ 0.12
34 nickels = 34×$0.05 = $ 1.70
87 dimes = 87×$0.10 = $ 8.70
18 quarters = 18×$0.25 = $ 4.50
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Total = $15.02
Now you do the same thing with your problem.
Edwin