Which of the following sets of ordered pairs is not a direct variation?
a. (0, 0); (-2, 4); (3, -6)
b.(1, 1); (-2, -2); (3, 3)
c.(10, 2); (15, 3); (20, 4)
d.(0, 0); (1, 3); (2, 4)

Calculate the density of benzene if 300ml of it weighs 263g. a. 0.88 g/ml b. 1.14 g/ml c. 78,900 g/ml d. 37 g/ml

Are the corresponding angles congruent? explain why or why not.

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?