Answer:
12) y=25x
13) 14 gallons
Step-by-step explanation:
m= (y2-y1)/(x2-x1)
m= (75-50)/(3-2)
m=25/1=25
y-y1=m(x-x1)
y-75=25(x-3)
y-75=25x-75
y=25x
------------------------------------
350=25x
x=350/25
x=14
