Emma has n containers. She will put 3/4 berries into each container. Which expression represents the total amount of berries, in cups, that Emma will put into the containers?

Problem number 26 of the rhind papyrus says: find a quantity such that when it is added to of itself the result is a 15. the modern day equation that models this problem is x + x = 15. what is the solution to the equation? x = 10 x = 12 x = 15 x = 30