What is the solution to the equation

Explain how you can use the associative property to evaluate (7x50)x4.

What is the result of converting 60 ounces to pounds remember there are 16 ounces in a pound

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. ?