Rewrite 7.25 as a mixed number in lowest terms

What properties allow transformation to be used as a problem solving tool

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

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. ?