Answer:
3g^2 - 2g + 12
Step-by-step explanation:
3g^2 - 7g + 5g + 12
-7g + 5g = -2g
9 buses
$57
has infinite solution
(x,y)=(1-2a,a) where a is an element of any real number
(5/2,0) and(-4,0)
I hope this helps.