Help help help help math

Which of the following answers is 7/9 simplified? 7/9 2/9 11/9 2/7

If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?