Sidney took a $400 cash advance by using checks linked to her credit card account. Th bank charges a 3 percent cash advance fee on the amount borrowed and offers ne 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 $0 (b)What was the interest for one month at an 6percent APR? Interest 5 (c) What was the total amount she paid? Total amount