I’ve been watching videos on how to do it but i’m still confused?? can someone help me please :( thank you! i’ll give you points

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. ?

Aregular pentagon with a perimeter of 21 inches is dilated by a scale factor of 5/3 to create a new pentagon. what is the perimeter of the new pentagon?

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.