Very Important I can get someone to check these for me... I have to get an A, and I was wondering if someone could double check these for me. I am about 95% sure they are right, but just need a fresh set of eyes. I know I've been sending alot, but I really need them to be double checked. Thanks so much!! :)

1. Simplify 2e^2+9e+3+3e^2-5e-2.
A. 5e^2+4e+1
B. -e^2+4e+5
C. 5e^2+14e+1
D. -e^2+14e+5
My answer was A. 5e^2+4e+1

2. Find the degree of 1+2x^4+2x^2
A. 4
B. 3
C. 1
D. 2
My answer was A. 4.

3. Find the degree of 7x+2
A. 4
B. 3
C. 2
D. 1
My answer was D. 1.

4. Write the variable expression. It is 4 black squares,4 skinny white rectangles, and 19 little white squares.
A. 4x^2+4x+19
B. 4x^2-4x-19
C. -4x^2-4x+19
D. -4x^2+4x+19
My answer was D. -4x^2+4x+19

5. Simplify 4q^2-5q-1-8q^2+8q-9
A. -4q^2+3q+8
B. 12q^2+3q-10
C. -12q^2-13q-10
D. -4q^2-13q+8
My answer was B. 12q^2+3q-10

6. Subtract (7x-5y) - (2x+4y)
A. 9x-9y
B. 9x-y
C. 5x-9y
D. x-y
My answer was C. 5x-9y

7. Add (6x+2y) + (3x-4y)
A. 3x-2y
B. 3x+6y
C. 9x-2y
D. 9x-2y
My answer was C. 9x-2y

8. Add (-4x-2y) + (7x-5y)
A. 11x+3y
B. 11x-7y
C. -3x+3y
D. -3x-7y
My answer was B. 11x-7y

9. Subtract (-4x^5 -5x) - (7x-5-8x^5)
A. 4x^5 -12x+5
B. -12x^5+12x+5
C. -11x^5 -13x-5
D. -13x^5 +2x-5
My answer was A. 4x^5 -12x+5

10. Subtract (4x+2y) - (8x-3y)
A. -4x-y
B. 12x-y
C. 12x+5y
D. -4x+5y
My answer was D. -4x+5y

11. Simplify 5x^4(7x+5)
A. 35x^4+5
B. 12x^5+25x^4
C. 12x^2+10x
D. 35x^5+25x^4
My answer was 35x^5+25x^4

12. What multiplication expression is shown by the model? It has two columns down, 2 big squares down and three below that. So its 10 squares all together.
A. 2x(2x+3)
B. 3x(2x+3)
C. x(x+6)
D. (x+3)(x+2)
My answer was A. 2x(2x+3). This one
I am 100% sure on, but still.

13. Simplify x^6 times x^4
A. x^10
B. x^24
C. 2x^24
D. 2x^10
My answer was A. x^10

14. Simplify -4x(2x^4+2)
A. -8x^4-2
B. -2x^5+8x
C. -2^4-6x
D. -8x^5-8x
My answer was D. -8x^5-8x

15. Find the area of the figure. The length is 4x^2+2x and the width is 3x.
A. 7x^3+5x^2
B. 4x^2+5x
C.10x^2
D. 12x^3+6x^2
My answer was D. 12x^3+6x^2

1, 2, 3. Correct

Don't know about 4.

5. It seems like you might have a typo. I get
-4q^2+3q-10

6, 7. Correct

8. Typo? I get 3x-7y.

9, 10, 11. Correct

12. Don't have model.

13, 14, 15. Correct.

1. To simplify the expression 2e^2+9e+3+3e^2-5e-2, combine like terms. Start by combining the terms with the same degree of e.

- Combine the terms with e^2: 2e^2 + 3e^2 = 5e^2
- Combine the terms with e: 9e - 5e = 4e
- Combine the constants: 3 - 2 = 1
The simplified expression is 5e^2 + 4e + 1. So, the correct answer is A: 5e^2 + 4e + 1.

2. The degree of a polynomial is the highest power of the variable. In the expression 1 + 2x^4 + 2x^2, the highest power of x is 4. Therefore, the degree of the expression is 4. So, the correct answer is A: 4.

3. In the expression 7x + 2, the highest power of x is 1. Therefore, the degree of the expression is 1. So, the correct answer is D: 1.

4. To write the variable expression for 4 black squares, 4 skinny white rectangles, and 19 little white squares, you need to determine what each element represents. Let's assign variables to each element:
- Black squares: x^2
- Skinny white rectangles: x
- Little white squares: 1
Then, you can write the expression as 4x^2 + 4x + 19. So, the correct answer is A: 4x^2 + 4x + 19.

5. To simplify the expression 4q^2-5q-1-8q^2+8q-9, combine like terms:
- Combine the terms with q^2: 4q^2 - 8q^2 = -4q^2
- Combine the terms with q: -5q + 8q = 3q
- Combine the constants: -1 - 9 = -10
The simplified expression is -4q^2 + 3q - 10. So, the correct answer is C: -4q^2 + 3q - 10.

6. To subtract (7x-5y) - (2x+4y), distribute the negative sign to each term inside the parentheses:
-7x + 5y - 2x - 4y
Combine like terms:
= -7x - 2x + 5y - 4y
= -9x + y
So, the correct answer is B: 9x - y.

7. To add (6x+2y) + (3x-4y), combine like terms:
6x + 3x + 2y - 4y
Combine like terms:
= 9x - 2y
So, the correct answer is C: 9x - 2y.

8. To add (-4x-2y) + (7x-5y), combine like terms:
-4x + 7x - 2y - 5y
Combine like terms:
= 3x - 7y
So, the correct answer is B: 3x - 7y.

9. To subtract (-4x^5 - 5x) - (7x - 5 - 8x^5), distribute the negative sign to each term inside the parentheses:
-(-4x^5 - 5x) - (7x - 5 - 8x^5)
= 4x^5 + 5x - 7x + 5 + 8x^5
Combine like terms:
= 12x^5 - 2x + 5
So, the correct answer is B: -12x^5 + 12x + 5.

10. To subtract (4x+2y) - (8x-3y), distribute the negative sign to each term inside the parentheses:
(4x + 2y) - (8x - 3y)
= 4x + 2y - 8x + 3y
Combine like terms:
= -4x + 5y
So, the correct answer is D: -4x + 5y.

11. To simplify 5x^4(7x + 5), distribute 5x^4 to each term inside the parentheses:
5x^4 * 7x + 5x^4 * 5
= 35x^5 + 25x^4
So, the correct answer is D: 35x^5 + 25x^4.

12. Based on the given model, two columns down, 2 big squares down, and three below that would represent 2x(2x+3). So, the correct answer is A: 2x(2x+3).

13. To simplify x^6 times x^4, you can add the exponents:
x^6 * x^4 = x^(6+4) = x^10
So, the correct answer is A: x^10.

14. To simplify -4x(2x^4 + 2), distribute -4x to each term inside the parentheses:
-4x * 2x^4 - 4x * 2
= -8x^5 - 8x
So, the correct answer is A: -8x^5 - 8x.

15. To find the area of the figure with length 4x^2 + 2x and width 3x, multiply the length by the width:
(4x^2 + 2x) * 3x
= 12x^3 + 6x^2
So, the correct answer is D: 12x^3 + 6x^2.