Joe spent 3/4 hours walking to paul's house. he and paul played video games for 1 1/4 hours. then joe walked back home, which took another 3/4 hours. how many hours was joe away from home?

Ms. ortiz sells tomatoes wholesale. the function p(x)=-80x^2+320x-10, graphed below, indicates how much profit she makes on a load of tomatoes if she makes on a load of tomatoes if she sells them for 4-x dollars per kilogram. what should ms. ortiz charge per kilogram of tomatoes to make on a load of tomatoes?