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Question and answers are in the attached picture. you so much in advance.

Aheated piece of metal cools according to the function c(x) = (.5)x ? 7, where x is measured in hours. a device is added that aids in cooling according to the function h(x) = ? x ? 2. what will be the temperature of the metal after two hours?

If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?