jason buys a jacket that originally cost c dollars and boots that originally cost d dollars. The price of each item is reduced by 20, and then he recives an additionally 15% off. Jason pays 7% slaes tax on his purchase. He dermines his total cost by calutuinhg the individal cost of each item and then adding those amounts. what is another way jason can calutate the total cost? Write an expression that represents the total cos of his purchase