Answer this, it’s from the book performance assessment 8th grade

The life of the typical college student is characterized by time pent in many different areas. how can this thesis statement be improved? typical college students spend their time in numerous ways and in various areas. the life of the average college student is mostly characterized by time and work spent in many different areas. the life of the average college student is characterized by time spent in many different areas. the life of the typical college student is characterized by time spent studying, attending class, and socializing with peers.

How do i can change this sentence : a modern physician in a small town not only is proficient in general medicine but surgery as well. to parallel structure?

There are six red marbles 4 blue marbles and 15 green marbles in a jar if you reach in and randomly draw one what is the probability that it will choose a red marble