Marlene noticed that when a pair of parallel lines was cut by a transversal, two particular vertical angles were reflections of each other. what can she conclude from this observation? a. the measures of the angles must be equal. b. the angles must be complementary. c. the angles must be supplementary. d. the measures of the angles must add to 360°.

Mason and christian go to the movie theater and purchase refreshments for their friends. mason spends a total of $45.75 on 3 bags of popcorn and 6 drinks. christian spends a total of $71.50 on 6 bags of popcorn and 4 drinks. write a system of equations that can be used to find the price of one bag of popcorn and the price of one drink. using these equations, determine and state the price of a drink, to the nearest cent.