To find the answer first subtract $47.54 from the total (76.82-47.54 = 29.28) Then divide the remaining money, 29.28 by the cost of one dog treat, $2.44. 29.28/2.44 = 12. Joseph purchased 12 dog treats. 12 times 2.44 is 29.28, plus the bag of dog food is 47.54, which totals 76.82.