Question

11. The student government is selling flowers for homecoming. The project costs them $20 for advertising and

$3 for each flower sold.
a. Evaluate the expressions 3n+20 and 3(n+20) when n = 4.
b. Which expression shows their total cost? How do you know?

Answer 1

32

Explanation:

• 3(n+20) = 3(4+20) = 3(24) = 72

• 3n+20 = 3(4)+20= 12+20=32

If n represents the amount of flowers they sold, then the correct answer should be 32. The cost for each flower they sold would be 3 x 4 and then add $20 for advertising.