The population of Happyville is modeled by the function \( P(t)=140000(1.08)^{t} \), where \( P(t) \) is the population \( t \) years after the year 2000 . a) What was the population of Happyville in 2009 ? Round to the nearest whole numbe Answer b) What should we expect the population of Happyville to be in 2050 ? Round to the nearest whole number.

The doubling period of a bacterial population is 15 minutes. At time \( t=80 \) minutes, the bacterial population was 60000 . What was the initial population at time \( t=0 \) ? Find the size of the bacterial population after 4 hours.

Simplify \( \sqrt{6}(\sqrt{18}+\sqrt{8}) \)

e) \( \sqrt[2]{\left(\frac{49}{9}\right)^{11} \cdot\left(\frac{49}{9}\right)^{-4}:\left(\frac{98}{18}\right)^{6}: \frac{196}{36}+[3-(0, \hat{6}-1)]^{2}}= \)

A population of a bacteria colony doubles every 3 hours. If there are currently 500 bacteria, how many will there be after 12 hours?

Hisoblang: \( \sqrt{66^{2}-44^{2}-22^{2}} \) \( \begin{array}{llll}\text { A) } 22 & \text { B) } 44 & \text { C) } 0 & \text { D) } 33\end{array} \)