The mods suck take the L

Multiply. write your answer in simplest form. 3/8 x 5/7

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. ?

Is this a polynomial function? i need to know asap