Events A and B are overlapping. P(A) =6/11 P(B) =4/11 P(A and B) = 2/11 Find P(A or B) the answer is 8/11

Is the orthocenter of a triangle on the inside ?

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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. ?