What is the relationship between a and b

Tcan be concluded that % of the seniors would prefer to see more candid pictures in this year's edition of the yearbook.

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?

Which questions would most a reader identify the author's purpose for writing? check all that apply. what type of text is this? what type of reviews did the book receive? how many copies of the book have been sold? what is the central idea? how does this text make one feel?