True or false 1. All rational numbers are real numbers. 2. An irrational number is always a real number. 3. Every whole number is an integer. 4. Every decimal number is a rational number. 5. All real numbers are integers. 1 6. is an irrational number. 5 7. Zero is an integer. 8. All natural numbers are sometimes positive. 9. All repeating decimals are irrational numbers, 10. There are no natural numbers between -5 and 0.