Question

A particular species of plant grows 3.7 m in 14 days. What is it's growth rate in micrometers per seconds

Answer 1

The growth rate is:

$$r = \dfrac{3.7m}{14days} = \dfrac{3.7}{14}\dfrac{m}{days}\\$$

In micrometers per seconds:

$$r = \dfrac{3.7}{14}\cdot \dfrac{10^{6}\mu m}{86400s} \approx 3.1\mu m/s$$

Answer. $3.1\mu m/s$.