Tong wants to pump out all the water from his koi pond to clean it. The graph below shows the amount of water left in the koi pond as Tong's vacuum machine pumps out the water. A. How much water is as in the koi pond when it was full?
B. How much water does the vacuum pump remove from the koi each minute?
C. Write an equation that shoes the amount you water, G, left in the koi pond after t minutes.
E. How long will it take the vacuum pump to remove all of the water from the koi pond.