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A standard showerhead in Marty's house dispenses 7 gallons of water per minute. Marty changed this showerhead to an energy-saving one. The equation shows the amount of water dispensed, y, as a function of the number of minutes, x, for the new showerhead.

y = 3x

How much water does Marty save each day with the change in showerheads if he uses the shower for 8 minutes each day?

4 gallons
12 gallons
32 gallons
53 gallons

Q&A Education