Wind Chill The formula that gives the wind chill factor for a 60°F temperature and a wind...

Wind Chill The formula that gives the wind chill factor for a 60°F temperature and a wind with velocity V in miles per hour is

a. Find the wind chill factor for the 60° temperature if the wind is 20 mph.

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b. Find the wind chill factor for the 60° temperature if the wind is 65 mph.

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c. Graph the function for 0 ≤ V ≤ 80.

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d. What are the domain and range of the function graphed in part (c)?