After 6 hours: 50 pounds doubles to 100 pounds
After 12 hours: 100 pounds doubles to 200 pounds
After 18 hours: 200 pounds doubles to 400 pounds
Therefore, after 18 hours, there will be 400 pounds of algae in the pond.
Suppose that the amount of algae in a pond doubles every six hours if the pond initially contains 50 pounds of algae, how much are G will be in the pond after 18 hours
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