World population ${?}^1$ is about $P=7\mathrm{.}68(1\mathrm{.}0103{)}^{\text{'}},$ with $P$ in billions and $t$ in years since $2020.$

$($s$)$ What in the yearty percent rate of prowth of the world population?

$\%$peryear

$($b$)$ What was the merte poputation $ln2020?$

$$ billion people

What does this model predict for the world population in $20227?$

Round your answer to $3$ decimal places.

$$ billien people

$($c$)$ Use part $($fb$)$ to find the projected average rate of change of the world population between $2020$ and $2027.$

Round your answer to the nearest integer.

$$ million people ser war

Inww indectmunalicom, accessed February $5,2021.$