Mia is three years older than twice her sister brooke's age. the sum of their ages is less than 30. what is the greatest age brooke could be?

a.)7

b.)8

c.) 9

d.)10

To find the answer, here is the solution for this problem:
Let M be Mia's age and B for Brooke's age.
M = 2B + 3 
M + B < 30 

M = 30 - B 
30 - B = 2B + 3 
3B = 27 

B = 9
Therefore, Brooke's age is 9 years old. The correct answer would be option C. 
Hope this is the answer that you are looking for. Let me know if you need more help next time.

Ibelieve it would be letter c (:

29. because you will divide each number of months by 12 to find the number of years. which would mean, 5, 12.5, 16, 45, 50, 72.5. which is crazy. anyhow, i think you find the median in the middle. and yea hope your test goes good