Which of the following is true if tom walks his dog 13.5 blocks each day and margo walks her dog 12.5 blocks each day? a. the product of 4(13.5) means that margo walked her dog 13.5 blocks in 4 days. b. the product of 4(12.5) means that margo walked her dog 54 blocks in 4 days. c. the product of 4(12.5) means that tom walked his dog 12.5 blocks in 4 days. d. the product of 4(13.5) means that tom walked his dog 54 blocks in 4 days.