D. 10 3. What is the numerical coefficient of - 10xy? A. X B. ху C. -10 4. What is the literal coefficient of -17a2b? A. -ab B. a2b C. 17 5. What is the degree of (7x - 8y)?? A. 1 B. 2 C. 3 D. -17 D. 4 5. Which of the following expressions is NOT a polynomial? A. -4x2 B. 4x2 x² . - D. 4