Roland made a trip of 450 miles in 8 hrs. before noon he averaged 60 miles per hr, and after noon he averaged 50 miles per hr. at what time did he begin his trip and when did he end? ?

It took alice 5 5/6 hours to drive to her grandparents' house for . on the way home, she ran into traffic and it took her 7 3/8 hours. how much longer did the return trip take? write your answer as a proper fraction or mixed number in simplest form. the trip home took __hours longer. ?

Find the dimensions of the circle. area = 64π in.² r= in.

Which of the following choices gives you a slope of 3?