Determine the intercepts of the line.

x-intercept : (-250, 0)

y-intercept : (0,100)

Step-by-step explanation:

Looking at the line plotted, you can see when and where the blue line intersects with the x-axis and y-axis.

i assume that by 5 you mean 5 gallons.

(20)(0.25) = 15

removing 15 gallons reduces the tank from 20 to 5.

go on the tube you might find some information there