There are 3 nickels because if you use the ratio 6 to 1 you multiply 6 by 3 to get 18 pennies and you do the same with the one and that’s how I got 3 nickels.
Answer:
she owes nothing and the credit card company owes her nothing.
First do 10 time 10, which gives you a hundred, then add two, and you get 102