Mr. j graded papers for 6.7 hours mr. bellanger graded papers for 12 hours. for how many more hours did mr. bellanger grade than mr. j

Will give brainliest what is the value of x? enter your answer in the box.

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 the power produced directly proportional to the wind speed, give reasons for your answer?