Box-Office Receipts The total worldwide box-office receipts for a long-running movie are approximated by the following function where T(x) is measured in millions of dollars and x is the number of years since the movie's release. 120x2 x2 + 4 T(x) = How fast are the total receipts changing 1 yr, 5 yr, and 8 yr after its release? (Round your answers to two decimal places.) after 1 yr million/year after 5 yr million/year after 8 yr %24 million/year

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