1-a. You bought a pair of shoes for $100 at an APR rate of 17% that you didnt pay off for a year. How much did the shoes really cost?

1-b. You have $1,000 balance on your credit card and an APR of 20%, How much will you be charged in interest everyday this year without even paying off the balance

1-c. You paid the minimum amount due of $20 on a $1,000 credit card debt with an apr of 22%. How much of your balance will you be charged interest on?