4.2 Activity: Translating/Evaluating Expressions & Sales Tax

Evaluate f(-2) if f(x) = x²+ 3

Translate this sentence into an equation.

Twice the sum of a number and 3 is 20.

Use the variable x to represent the number.

a $10 taxi fee plus $2 per mile

Which statement could be represented by $$\frac{1}{4}\left(5x-6\right)$$  

Match the following statements with their algebraic expression.

Students are working a car wash. The students charge SUVs and Trucks 8 more than three times the cars ( c). Which of the following expressions represents how much money they charges the SUVs and Trucks?

If Jenny’s salary is $350 per week and she works 40 hours, what does she earn per hour?

Rosalee works as a sales representative for a furniture manufacturer and gets paid a commission of 4.5% of the amount of merchandise that she sells. Last week her sales totaled $4000. How much is her commission?