I see that you've uploaded three images of a document containing multiple math problems. I'll analyze the images and extract the math problems for you. Then, I can help you solve them.

Let me first extract and review the math problems from these images.Here's a summary of the math problems from the images:

Image 1

1. Problem 101:
   If $x = -2$ and $y = 1$, what is the value of the following expression: $3x - y$?

   • A. $-7$
   • B. $-5$
   • C. $5$
   • D. $7$

2. Problem 102:
   Select the value of $a$ so that the graph of the equation $y = ax + 1$ passes through the point $(2, 3)$.

   • A. $1$
   • B. $2$
   • C. $-1$
   • D. $-2$

3. Problem 103:
   If $x = 2$, which of the following is a value of $3x - 4$?

   • A. $2$
   • B. $4$
   • C. $-2$
   • D. $-4$

4. Problem 104:
   Based on a graph, the average height above sea level in meters for 20 days of measurements is shown. What is the average height?

   • A. $2$
   • B. $4$
   • C. $5$
   • D. $6$

5. Problem 105:
   If the area of a circle is $9\pi$, what is the radius of the circle?

   • A. $2$
   • B. $3$
   • C. $4$
   • D. $9$

Image 2

6. Problem 106:
   If a rectangle has a length of $10$ and width $4$, what is the area?

   • A. $40$
   • B. $14$
   • C. $36$
   • D. $28$

7. Problem 107:
   If $4$ apples cost $40$ cents, how much do $10$ apples cost?

   • A. $100$ cents
   • B. $200$ cents
   • C. $400$ cents
   • D. $500$ cents

8. Problem 108:
   Which property is shown here: $4 \times (2 + 3) = (4 \times 2) + (4 \times 3)$?

   • A. Distributive
   • B. Associative
   • C. Commutative
   • D. Transitive

Image 3

9. Problem 109:
   Three teams are playing a game. If the teams have $2$, $5$, and $7$ points respectively, what is the total number of points?

   • A. $12$
   • B. $14$
   • C. $7$
   • D. $9$

10. Problem 110:
    If a certain number is multiplied by $3$ and then $9$ is subtracted, the result is $15$. What is the number?

    • A. $5$
    • B. $8$
    • C. $7$
    • D. $4$

11. Problem 111:
    The star graph has five vertices. What is the degree of each vertex?

    • A. $2$
    • B. $4$
    • C. $5$
    • D. $8$

12. Problem 112:
    A hexagon is divided into equilateral triangles. What is the number of triangles?

    • A. $5$
    • B. $6$
    • C. $10$
    • D. $12$

Please let me know which specific problems you'd like to solve, and I can guide you through them!