Given:
Total members = 400
Percentage of members 17 and younger = 8%
Percentage of members aged 18 - 34 = 31%
Percentage of members aged 35 - 54 = 35%
Percentage of members aged 55 plus = 26%
To find the number of members between the ages of 18 and 34, use the formula below:
Thus, we have:
Therefore, the number of health club members at this health club between the ages of 18 and 34 is 124
ANSWER: