21. What is the degree of (3x - 2y)?
A. 1
B. 2
C. 3 D. 5
22. Which of the following expressions is NOT a polynomial?
y?
A. -7y? B. v7y2 C. - 7
23. When x = -2, which expression has the value -64?
A 3x2 B. (3x) C. 2x D. (2x)
24. What do you call a polynomial with three terms??
A. monomial B. binomial C. trinomial D. multinomial
25. What is the value of 4x2 + 3 when x = 0
A. 7
B. 4
C. 3
D. O
26. The number of terms in the expression 15x! - 3x2 +7.
A. 1
B. 2 C. 3
D. 4
27.Find the value of 10x if x = 7
A.7
B. 10 C. 17 D. 70
28.What is the degree of the polynomial 6x6 + 5x3 + 4x + 3x3 + 2x2 + 1?
A. 3 B. 4 C. 5 D. 6
29. Which of the following polynomial does not have a degree?
A. 0
B. 12
C. m - 4
D. x2 -2x + 3
30. What is the degree of 3a3b + a2 + 2 ?
A. 4
B. 3
C. 2
D. 1

(help please)