f \( p+q+r=13 \) and \( p q+q r^{\prime}+r p=30 \) then what will be the value of \( p^{3}+q^{3}+r^{3}-3 p \) gr

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 \( -4 x+5 y=20 \) ?

Solve for \( y \) \( 2 x-5 y=-12 \)

A sequence can be described using the rule \( a_{n}=-2+3(n-1) \). Which is the value of the 20th term in this sequence?