Answer:
Explanation:
Therefore, the volume of the water in the tank 25 minutes after Baxter begins filling the tank is 255 gallons. 
 
Step-by-step explanation: 
 
Linear Equation; Ax+By=C 
 
A linear equation to model this situation: 
8x + 55 = C 
 
Where; 
 
8 is for the rate of gallons. 
'X' is the minutes. 
55 is the gallons of water the tank already contained. 
8(25) + 55 = 255 
 
Where; 
 
8 is for the rate of gallons. 
25 is the minutes. 
55 is the gallons of water the tank already contained.