Which two expressions are equivalent for any value of x? 4x - 2 + 5x and 7x

(11 + 3x) - x and 11 + 2x

12(x - 2) and 12x - 2

9(4x) and 13x

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. ?