One Friday night, a group of friends bought 5 containers of popcorn and 4 granola bars at the movie theatre for $42.50. The next week, the same group of friends bought 3 containers of popcorn and 6 granola bars for $34.50. Let p represent the cost of one container of popcorn. Let g represent the cost of one granola bar. Which system of equations will solve for p and g? 5 p + 4 g = 34.50. 3 p + 6 g = 42.50.
4 p + 5 g = 34.50. 3 p + 6 g = 42.50.
4 p + 5 g = 42.50. 6 p + 3 g = 34.50.
5 p + 4 g = 42.50. 3 p + 6 g = 34.50.