Answer:
the answer is 341(I think)
The answer would be $100. Equation is 2(m+20)=240.
Hope this helped you.
It’s unsolvable with out more context. What’s the rest of the problem.
6:2
12:4
18:6
24:8
30:10
36:12
So 36+12 which equals 48 total members hope it helps