13. Blake Brown demonstrates cookware at the National Food Fair. He is paid $7.00 each for the first 10 demonstrations in one day and $8.50 for each demonstration over 10. What is his commission if Blake makes 12 demonstrations in one day?

Lines p and q intersect. find the value of b. show your work. cite any theorems you use.

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

This stem-and-leaf plot represents the heights of the students on ralph's basketball team. one student's height is missing from the plot. if the mean height of all the students on the team is 61 inches, what is the missing height? a. 55 in. b. 59 in. c. 61 in. d. 65 in.