Trudy’s ice cream shop offers two sizes of ice cream: single scoop and double scoop. on her best day of the year, trudy sold 256 single scoops and 312 double scoops. if s represents the price of a single scoop and d represents the price of a double scoop, which of the following equations can be used to model the amount of money (t) trudy’s ice cream shop made on her best day? a. t = 312s + 256d b. t = 256s + 312d c. t = 568sd d. t = 56sd