Final answer:
To find Brad's overall score after two rounds, add his first round score of 18 points to his second round score of -7 points, resulting in an overall score of 11 points.
Step-by-step explanation:
The question asks about calculating the overall score Brad achieved after playing two rounds of a game, where he scored 18 points in the first round and -7 points in the second round.
To calculate Brad’s overall score, we simply need to add the scores from each round together:
- First round score: 18 points
- Second round score: -7 points
- Overall score: 18 + (-7) = 11 points
The negative sign in front of the 7 points means that Brad lost 7 points in the second round, so we subtract 7 from his first round score.
Therefore, Brad's overall score after two rounds is 11 points.