Solve \( \log _{2}\left(\log _{5} x\right)=3 \) \( \begin{array}{l}\text { (1 point) } \\ x=1,953,125 \\ x=32,768 \\ x=390,625 \\ x=59,049\end{array} \) \( \begin{array}{l}x \\ \text { x }\end{array} \)

Which is the value of \( g(-5) \) if \( g(x)=3.4 x-8 ? \)

Which graph shows the solution of the system of equations?

Sorcice 1: \( f_{m} \) la famille de fonctions définies par: \( f_{m}(x)=x^{2}-2 m x+8 m-16 \quad(m \in \mathbb{R}) \) 1) Montrer que 4 est une racine de \( f_{m} \) quelle que soit la valeur de \( m \).

A used book store buys a hardback book for \( \$ 1.50 \) and then sells it for \( \$ 5 \). Over time, the store sells the same number of books it buys. The store manager can use the equation \( P(x)=5 x-1.5 x \) to determine the store's profit, \( P(x) \), where \( x \) is the number of books that the store sells. Which statement about the book store is true based on the profit equation?

Which are the coordinates of the \( x \)-intercept in the equation \( -4 x+5 y=20 \) ?