Annalise earns $4 an hour walking pets in her neighborhood. she evaluates the expression 4h, where h represents the number of hours, to find the amount she earns. can any number be substituted for h? explain ( plz answer ! )

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. ?

Aefg - almn. find the ratio of aefg to almn. a)1: 4 b)1: 2 c)2.1 d)4: 1

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