Answer:
C. 3 3/55 inches per hour
Explanation:
You want to know the snowfall rate in inches per hour if 7 feet fell in 27 1/2 hours.
Rate
The rate is found by dividing the quantity by time. The quantity in inches is ...
7 ft = (7 ft)(12 in/ft) = 7·12 in = 84 in
The rate in inches per hour is ...
(84 in)/(27 1/2 h) = 84/(55/2) in/h = 168/55 in/h = 3 3/55 in/h
The snowfall rate was about 3 3/55 inches per hour, choice C.
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