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.

2. The value of \( \frac{(0.1)^{2}-(0.01)^{2}}{0.0001}+1 \) is

Simplify without a Calculator \[ \log _{5}\left(\frac{1}{625}\right)=\square \]

Agar \( a=(\sqrt{3}+1)^{4} \) bo'lsa, \( a \cdot(1-\{a\}) \) ning qiymatini toping. Bu yerda \( \{a\}-a \) sonining kasr qismi. \( \begin{array}{llll}\text { A) } 1 & \text { B) } 81 & \text { C) } 54 & \text { D) } 16\end{array} \)

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

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