Answer:
Joseph has started saving quarters, dimes, nickels and pennies
We know that $1 = 100 cents
So, $3.50 = 350 cents
We also know that :
1 quarter = 25 cents
1 dime = 10 cents
1 nickle = 5 cents
1 penny = 1 cent
Hence, the total greatest amount of money Joseph could have in coins is:
4 pennies or 4 cents plus 340 cents in any combination of quarters, dimes and nickles, making a total of 354 cents.