Hi I need help with questions from my study guide.

1.Sharon has a balance of $3,825 on her credit card. If the card has an annual rate of 20.99% how much is the finance charge for this month?

A.$802.87

B.$219.96

C.$66.91

D.$20.99

2.Tamika opens a credit card in which the minimum monthly payment is 15%. Her current balance is $2,450, not including the finance charge, and the APR is 20.5%. Assuming she makes a payment of $400 this month, how much will the minimum monthly payment be for the next month?

A.$367.50

B.$502.25

C.$313.78

D.$426.53

3.Brooklyn opened a store credit card to purchase a sofa for $849. She put the entire purchase on the credit card. Her APR is 19.99% and the minimum payment is 5%. Assuming she makes only minimum payments, what is the remaining balance on her card after 3 months?

A.$727.91

B.$741.31

C.$820.69

D.$766.88

4.Trisha uses her credit card to pay for new tires that ended up totaling $527.89. She can pay off up to $200 a month. The card has an annual rate of 22.5%. How much will she pay in interest?

A.$18.93

B.$22.84

C.$118.78

D.$146.82

5.Matthew opens a store credit card when he purchases a new sound system. The interest rate is 22.45%. He charges $4,120 to the card, and can pay $1,450 per month. What will the total cost of his purchase be?

A.$4,120.00

B.$4,273.70

C.$5,044.94

D.$5,493.70