5.Which of the following numbers are irrational? 1. 0.6666... II. 749 III. 35 A. I and II C. III and IV B. II and III D. I and IV IV. 5.0990195... 6. The counting numbers starting from 0 and going to infinity belong to the set of A. integers C. rational numbers B. natural numbers D. whole numbers 7. Which of the following is always true? A. 0.33333... is an irrational number. B. 3.16227 is a natural number. C. 2.64575... is a real number. D. 1.41421 is an integer. A. -3 8. Which number below is natural, whole, integer and rational? B. 0.8 C. 4.1 D. 5 9. Which of the following statements is always TRUE? A. Some whole numbers are not rational. B. All rational numbers are integers. C. All whole numbers are integers. D. All integers are whole numbers.