4.2 Activity: Translating/Evaluating Expressions & Sales Tax

is, are, was, and were can be used with which symbol?

• parenthesis
• equal
• division
• multiplication

f(x)=4x+5
f(4)=

• 21
• -11
• -31
• 25

Evaluate f(-2) if f(x) = x²+ 3

• -1

• 1

• 7

• -7

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

• 10m+2

• 10+2m

• 10+2

• One-fourth of the quantity 6 less than the product of 5 and a number

• One-fourth of the product of 5 and a number decreased by 6

• One-fourth of the quantity 6 decreased by the product of 5 and a number

• One-fourth of a number decreased by 6

Match the following statements with their algebraic expression.

• Twelve more than three-fourths of a number

• The cube root of 12 plus a number; over 4

• Half the quantity of a number times 3 less 4

• Five less than the squared quantity of a number plus 14

• Double a number less 14

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?

• $8.75

• $7.25

• $35.00

• $8.00

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?

• $190.00

• $180.00

• $160.00

• $200.00