Given that A = (9,9,2), B = (1,3,5) and C = (5,6,4), find the vector equation of the line through A and B.
a. r=(8,6,-3)+t(9,9,2)
b. r=(9,9,2)+t(-8,-6,3)
c. r=(9,9,2)-t(-8,6,-3)
d. r=(9,9,2)-t(8,-6,3)

Which of the following best describes the figure?

Sophia wrote an equation to represent the revenue of a movie theater for one day. she let x represent the number of child tickets sold and y represents the nunver of adult tickets sold. if a child ticket cost $4, an adult ticket cost $6, and the total revenue for the daybwas $420, which equation could sophia use to represent the number of chikd and adult tickets that were sold?

If 7x=9y, y/z = 7/5 , then x/z = (a) 2/7 (b) 7/9 (c) 9/5 (d) 9/7 (e) 5/9