Answer:
d, 17
Step-by-step explanation:
its common sense
A)The most friends you can give to is 6
B)Each one will get seven reds and twelve blues.
The reasoning is that is the only amount that balances evenly enough
If you type the equation into y1 on your calculator and use the table graph you get coordinates that you can graph. ( 0,-9 ) ( 1,-6 ) ( 2, -3 ) ( 3 , 0 ) ( 4, 3 ) ( 5 , 6 ) ( 6 , 9 ), just graph those and that should answer your question :)