Answer: a) 9 19/24 lbs b)6 5/24 lbs
Step-by-step explanation:
a) In the first month, Jack's dog lost 5 1/8 lbs, and during the second month lost 4 2/3 lbs. The total weight his dog lost during the first two months would be 5 1/8 lbs + 4 2/3 lbs which is 9 19/24 lbs.
b) The weight his dog needs to lose in the third month to reach the goal of losing 16 pounds would be 16 - 9 19/24, which gives you 6 5/24 lbs.