Answer:
Callie's cat lost 1.625 pounds.
Explanation:
Callie's cat lost 4 1/2 pounds before having surgery.
Two weeks after having surgery, her cat gained 2 7/8 pounds.
To find the total change, we add 2 7/8 to -4 1/2
-4 1/2 + 2 7/8 = -1.625
The total change in weight is -1.625
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