Answer:
a
Step-by-step explanation:
If 5/6 gallons covers a quarter of the house, then you would need 4 times as much paint:
Which is 20/6 gallons or 3 and 1/3 gallons
Hope this helped
A+b+c = 131
b = 7 + 2a and c = a - 12
so a + 7+2a + a-12 = 131
then 4a -5 = 131
then 4a = 136
and a = 34....so b= 75 and c = 22....check 34+75+22=131√
If your looking for an equation than it y=-9/5x+-4 .....if that's not what u were looking for sorry