Answer:
18 points in all.
Explanation:
We have been given that Adam earned 2 points in the first round of competition. In the second round, he earned 7 points. In the final round, he earned 9 points.
To find the points earned by Adam in total, we will add points earned by him in each round.
![\text{Points earned by Adam in total}=2+7+9](https://img.qammunity.org/2020/formulas/mathematics/middle-school/x4y9rpuywypa0itolvu32992empkaq16cb.png)
![\text{Points earned by Adam in total}=18](https://img.qammunity.org/2020/formulas/mathematics/middle-school/rueis0ki0r12vdhxt1rxldwnvz3anxm8wy.png)
Therefore, Adam earned 18 points in all.