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Word problem involving composition of two functions The volume V (r) (in cubic meters) of a spherical balloon with radius r meters is given by

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Word problem involving composition of two functions The volume V (r) (in cubic meters) of a spherical balloon with radius r meters is given by V (r) = = ar'. The radius W (t) (in meters) after t seconds is given by W (t) = 8t+3. Write a formula for the volume M (t) (in cubic meters) of the balloon after t seconds. It is not necessary to simplify. M (1) = 0 X

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