Find the Mean for the Given Sample Data

Find the mean for the given sample data. Unless otherwise specified, round your answer to one more decimal place than that used for the observations.
-The Wellspring Company's fleet of trucks get 19, 12, 16, 8, 16, 9, and 25 miles per gallon. What is the mean miles per gallon for the fleet? Round to the nearest whole number.

A) 16 miles per gallon
B) 14 miles per gallon
C) 15 miles per gallon
D) 18 miles per gallon