$3$

Formula $2$ points

A bacteria colony initially has $1$ million bacteria, and is growing at a rate of $f(t)=5e^{0\mathrm{.}03t}$ bacteria per hour. By how many bacteria does the colony grow in the first $3$ hours?

The units of your answer are "million bacteria". Input your answer to THREE decimal places. Do not include units.

$15\mathrm{.}0125$