Sidney took a $400 cash advance by using checks linked to her credit card account. The bank charges a 1 percent cash advance fee on the amount borrowed and offers no grace period on cash advances. Sidney paid the balance in full when the bill arrived.

(a) What was the cash advance fee? cash advance fee_______

(b) What was the interest for one month at an APR of 12 percent?

interest________

(c) What was the total amount Sidney paid?

total amount__________