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Math·Problem-Solving and Data Analysis·Ratios, rates, proportional relationships, and units

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On average, a certain tree grows $69$ centimeters every $m$ months. At this rate, which expression represents the number of centimeters, on average, the tree grows every $k$ years?

A

$\frac{23m}{4k}$

B

$\frac{23k}{4m}$

C

$\frac{828m}{k}$

D

$\frac{828k}{m}$