Charlie bought a $60 radio on sale 5%-off. how much did he pay including 5% sales tax? a) $54.15 b) $557.00 c) %57.75 d) %59.85

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?