In 2010, a city's population was 83,075 and it was declining at a rate of \( 1.04 \% \) each year. Which is the best prediction for when the city's population will first be below 62,000 ?

8. a) \( \operatorname{Add} \frac{7}{9+\frac{1}{6}}= \)

Express the repeating decimal number as a quotient of two integers. \( 4 . \overline{45} \) \( 4 . \overline{45}=\square \) (Simplify your answer. Type an improper fraction.)

A. \( \frac{3}{5}+\frac{7}{11}=\frac{\square}{55} \)

[b] Simplify to the simplest form : \( \sqrt{125}-\sqrt[3]{250}+\frac{1}{2} \sqrt[3]{16}+\sqrt{20} \)

Exencice 1 - POLynesie 2001 Calculer le nombre B en détaillant les calculs. \[ B=\frac{10^{7} \times 10^{-3}}{10} \] On donnera le résultat sous la forme \( 10^{n} \).