It will take 12 years for Benny to reach his moms height.
Benny’s mom: 48
Benny: 12
Half of 48 is 24, so Benny will have to turn 24.
24 - 12= 12
40 % out of 80 for red
20% out of 80 for blue
1/8 of 32 is 4 so if Ryan is 4 then Brandon is 2
so Ryan = 4 and Brandon = 2