One way is if you have 20 pennies, 7 dimes, and 2 nickels.
A half-dollar, 3 quarters, 2 dimes and a nickel.◄
7 yens in a dollar
90 pennies 7 half dollars 2 quarters 1 dime
A Quarter, a Nickel and 7 Dimes: 1 × 25 cents + 1 × 5 cents + 7 × 10 cents = 100 cents = 1 dollar.
A half dollar (50-cent piece), 7 nickels, and a penny.
5 dimes and 2 quarters.
2 quarters 5 dimes
1 dollar, 1 half dollar, 4 dimes and a nickel.
A dollar coin, a fifty-cent piece and 7 pennies.
One way is if you have 20 pennies, 7 dimes, and 2 nickels.
7 dimes + 1 nickel
2 quarters and 5 dimes would be 7 coins that total to 1 dollar. 5 nickels, 1 quarter and 1 half dollar would be another combination.
1 50 cent piece 1 Quarter 5 Nickels
The answer will depend on the country whose dollar you mean. Different countries, that use dollar, have coins of different denominations.
2 quarters + 7 nickles + 1 penny
it's possible only if there are 20 cent coins only for that 7 dollars 1 dollar = 100 cents, 100 cents = 5 of 20 cent coins since you need 5 of 20 cent coins for a dollar, you do 7 times of it. 7 X 5 = 35. Therefore, you need 35 of 20 cent coins for 7 dollars. (or there are 35 of 20 cent coins in 7 dollars)