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OpenStudy (anonymous):
When the air in a hot-air balloon is heated to 100 degrees Fahrenheit, each cubic foot of air can lift about 7 grams. The function f(x) for the number of grams that can be lifted by a balloon containing x ft3 of air is f(x) = ____. Help please! :)
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OpenStudy (anonymous):
When the air in a hot-air balloon is heated to 100 degrees Fahrenheit, each cubic foot (ft3) of air can lift about 7 grams of weight.
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