st Prep A new mobile device has a value of \( \$ 256.25 \). Its value changes by \( -22 \frac{1}{2} \% \) each year. What is the value of the phone after two years? \( \begin{array}{ll}\text { (A) } \$ 140.93 & \text { (C) } \$ 153.91 \\ \text { (B) } \$ 198.59 & \text { (D) } \$ 57.66\end{array} \)

Who can save money to buy a house?

3: Exponential and Logarithmic Functions hework: Solving with and without Logarithms If you deposit \( \$ 6500 \) into an account paying \( 8 \% \) annual interest compounded monthly, how much money will be in the account after 7 years?

4) Modélisation du bénéfice : Soit \( b \) la fonction définie sur \( [1 ; 5,5] \) par : \( \quad b(x)=a(x)-c(x) \). a) Que représente \( b(x) \) ? b) Calculer et simplifier \( b(x) \). c) Pour quels prix de vente unitaire d'un séjour l'agence réalisera-t-elle un bénéfice ? On pourra utiliser la calculatrice graphique pour répondre à cette question.

A family has a monthly income of \( \$ 3100 \) and plans to spend \( 7 \% \) of this amount on entertainment. How much will be spent on entertainment? The family will spend \( \$ \square \) on entertainment.

in deposited \( \$ 2700 \) into a savin te of \( 0,3 \% \). Find the amount in