With circle O and tangent AB, Please find length of AC if the radius of the circle O is 5 and the length of AB is 12

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. ?

Identify the number as a rational or irrational.explain. 127

Can you me find the slope! (30 points)