Question #6402201Single Choice
Math
Question
If x is the average (arithmetic mean) of m and 9, y is the average of 2m and 15, and z is the average of 3m and 18, what is the average of x, y, and z in terms of m?
Options
A
m + 6
B
m + 7
C
2m + 14
D
3m + 21
Answer & Analysis
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