1. Which expression has a value of 30 when x = -1 and y = 3?
A. (x - 3^2) · y - 6
B. (x - 3^2) · (y - 6)
C. x - 3^2 · (y - 6)
D. x - 3^2 · y - 6

2. Which expression has a value of -18?
A. (6^2 + 2) - 8 \sqrt{81}
B. 6^2 + (2 - 8) \sqrt{81}
C. (6^2 + 2 - 8) \sqrt{81}
D. 6^2 + 2 - (8 \sqrt{81})

3. What is the value of the expression 5 + (3 · (2 - \sqrt{81}))?
A. -16
B. 1
C. 2
D. 7

4. Which expression has a value of 26 when a = 4 and b = 5?
A. a \sqrt{16} + b - 10
B. a (\sqrt{16} + b) - 10
C. a \sqrt{16} + (b - 10)
D. (a \sqrt{16}) + b - 10

5. What is the value of the expression (c^2 + d^2) - 2(c^2 - d^2), when c = 3 and d = 2?
A. -23
B. -3
C. 3
D. 23

6. Which expression has a value of 66?
A. (7^2 - 8) · 2 - 16
B. 7^2 - 8 · (2 - 16)
C. 7^2 (- 8 · 2) - 16
D. 7^2 - 8 · 2 - 16

7. What is the value of the expression y ÷ \sqrt{9} - x^3 · y, when x = 2 and y = 6?
A. -46
B. -36
C. 36
D. 46

8. What is the value of the expression 4(\sqrt{p} + q^2), when p = 49 and q = -2?
A. 12
B. 20
C. 36
D. 44

Please help me quickly!!