Try this for the code:
825317
25. Because (30/50)/(2)= 15/25
15= cars washed
25 = lawns mowed
Twelve flute players.
Eight trombone players.
20 total of flute and trombone players.
The correct answer is B.
6x*6x=36x
-8*+8=-64
Thus, our equation is 36x-64
Hope this helps!