A little help?!? Pleaseee

What percent of the circle below is shaded?

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. ?

I'm a polygon i have no parallel lines i am formed 3 line segments i have one right angle two of my angles are angles what am i