Joan, a college student, receives an f in her chemistry class because she performed poorly on her exams and missed class on a regular basis. her grade is an example of a(n)

average

Explanation:

this is what I think because for report cards the teachers average your grades

answer; ///i believe the correct answer is (b) the writing of the ancients who lived in india after the indus valley inhabitants died out;

answer; bonds; i believe this is the correct answer good luck