Under what operations are the set of integers
closed? explain your answer.

Select the sequences that are geometric.

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 area of square garden is 300m squared. how long is the diagonal?