I really think it’s B ...Help?

How do you find the area of a triangle

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. ?

The sum of the squares of two numbers is 8 . the product of the two numbers is 4. find the numbers.