Is 3x - 5 = 8.5, what is the value of 5x + 3?
a. 13
b. 15.5
c. 20.5
d. 25.5

Officer brimberry wrote 24 tickets for traffic violations last week, but only 9 tickets this week. what is the percent decrease? give your answer to the nearest tenth of a percent.

An equation where variables are used to represent known values—function notation true or false

7. if the value of x varies directly with the value of y, and x = 3 when y = 21. what is the valu y, and x = 3 when y = 21. what is the value of x when y = 105?