C. OX a. abc b. X 16. The simplified form of (abc)* is equal to ... d. 12x b. a'bc4 c. a*b*c4 d. abc 17. An algebraic expression with zero exponent is always equal to ... a. itself c. 1 d. 0 18. Which of the following is a binomial? a. 3xy b. 4ab-6a + 70 c. 8mn + 3m d. -8rs 19. The following statements are true based on the real number system except... a. integers are rational numbers c. whole numbers are integers b. irrational numbers are rational numbers d. rational numbers are real numbers​