Answer:
A. According to the graph, there would be 16 gallons of water flowing from the hose in 20 minutes.
B. Also according to the line of best fit, it would take 25 minutes for 20 gallons of water to flow out of the hose.
C. The equation for the line of best fit would be: y = 4/5x, because all of the y values are exactly four fifths of their corresponding x values.