Sidney took a cash advance of $300 by using checks linked to her credit card account. The bank charges a cash advance fee of 4 percent 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? (Round your answer to 2 decimal places.)
b. What was the interest for one month at an APR of 20 percent? (Round your answer to 2 decimal places.)