3. Mika opened a bank account that earns simple interest with an initial deposit of \( \$ 2,200 \). She made no other transactions throughout the year. At the end of the year, Mika had \( \$ 2,260.50 \) in her account. What was the simple interest rate?

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.

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?

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

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.

You deposit \( \$ 1000 \) each year into an account earning \( 3 \% \) interest compounded annually. How much will you have in the account in 25 years? \( \$ \)