Sidney took a $850 cash advance by using checks linked to her credit card account. The bank charges a 3 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 What was the cash advance fee? (Round your answer to 2 decimal places What was the interest for one month at an 12 percent APR? (Round your answer to 2 decimal What was the total amount she paid