An antique automobile was found to double in value every 10 years. If the current value is \( \$ 100000 \), what was the value of the vehicle 20 years ago? \( \$ 25,000 \) \( \$ 12,500 \) \( \$ 5,000 \) \( \$ 50,000 \)

1) \( f(x)=\log _{2} \quad x+2 \) 2) \( f(x)=\log _{2} \quad x-1 \) 3) \( f(x)=\log _{2} \quad x+3 \) 4) \( f(x)=\log _{2}(x+2) \) 5) \( f(x)=\log _{2}(x-2) \) 6) \( f(x)=\log _{2}(x-5) \)

Simplify the cube root. \[ \sqrt[3]{1331} \]

Matteo ha già acquistato 146 figurine per la sua collezione, ma gli \( \frac{11}{73} \) di queste sono doppioni. In realtà, quindi, Matteo ha in mano \( \mathrm{i} \frac{31}{50} \) dell'intera collezione. Quante figurine gli mancano per completarla?

Simplify the radical expression. Assume the variable is unrestricted. \( \sqrt[6]{729 b^{6}} \)

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 \( 10^{n} \).