Find the answer to the math problem: Sheila charged $85.00 worth of merchandise on her credit card.  She ended up returning one item that cost $15.00.  After she returned the item, she bought a frying pan that was on sale for 20% off $20.00 and a set of towels that was 10% off $30.00.  She put both of these purchases on her credit card.  What is the new balance on her credit card?