Please answer $6$ and $7$

On a hot summer day, the temperature of air in Arizona reaches $104F.$ What is the speed of sound in air at this temperature? $($The speed of sound at $0C$ is $331\frac{m}{s}.$ Use the conversion noc $=273k$ ac necessary.$)\frac{m}{s}$

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$$ SERCP$1114\mathrm{.}3.$P$\mathrm{.}005.0/5$ Submissions Used

A group of hikers hears an echo $1\mathrm{.}50$ s after shouting. How far away is the mountain that reflected the sound wave? $($Assume the speed of sound is $348\frac{m}{s}.)$

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