Work Step by Step
Let O represent the age of the oldest child, M represent the age of the middle child, and Y represent the age of the youngest child, then M(Y)=0.5Y+6 O(M(Y))=2(0.5Y+6)=Y+12
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.