Brooke received these quiz scores 86 54 90 81 74 whats her mean score

(86 + 54 + 90 + 81 + 74) / 5 = ?

I'll be glad to check your answer.

Add up all of the scores and then divide by 5 since you have 5 scores.

To find the mean score, you need to calculate the average of all the scores.

To do this, you can follow these steps:

1. Add up all the scores: 86 + 54 + 90 + 81 + 74 = 385.
2. Count the total number of scores, which in this case is 5.
3. Divide the sum of the scores by the total number of scores: 385 / 5 = 77.

Therefore, Brooke's mean score is 77.