To determine the total weight change when a person gains 15 pounds and loses 7 pounds, follow these steps:
1. First, note the amount of weight gained: 15 pounds.
2. Then, note the amount of weight lost: 7 pounds.
3. The total weight change is calculated by subtracting the weight lost from the weight gained.
Let's perform the subtraction:
[tex]\[ 15 \text{ pounds} - 7 \text{ pounds} \][/tex]
4. Subtracting 7 from 15 gives you 8 pounds.
Therefore, the total weight change is 8 pounds.
So, the correct answer is:
O 8
