The solution provides answers for 4 math problems. What are the original math problems?

We need to find the value of $30 \div 6$.

$$30 \div 6 = 5$$

The options are A. 12, B. 18, C. 24, D. 36, E. 72. None of the options match 5. There might be an error in the question or options provided in the image. However, based on the calculation, the value is 5.

We need to find the value of Y if $18 - Y = 4$.
To find Y, subtract 4 from 18:

$$Y = 18 - 4$$ $$Y = 14$$

The options are A. 0, B. 1, C. 2, D. 3, E. 6. None of the options match 14. There might be an error in the question or options provided in the image. However, based on the calculation, the value is 14.

We need to find the value of $8 \times (6 + 2)$.
First, perform the operation inside the parentheses:

$$6 + 2 = 8$$

Now, multiply the result by 8:

$$8 \times 8 = 64$$

The options are A. 32, B. 39, C. 42, D. 54, E. 84. None of the options match 64. There might be an error in the question or options provided in the image. However, based on the calculation, the value is 64.

We need to find the value of $(12 - 6) + (8 \div 2)$.
First, perform the operations inside the parentheses:

$$12 - 6 = 6$$ $$8 \div 2 = 4$$

Now, add the results:

$$6 + 4 = 10$$

The options are A. 50, B. 10, C. 30, D. 20, E. 40.
The calculated value is 10, which matches option B.
The final answer is $\boxed{\text{B. 10}}$.

We need to find the value of x if $9 \times x = 9$.
To find x, divide 9 by 9:

$$x = \frac{9}{9}$$ $$x = 1$$

The options are A. 3, B. 4, C. 5, D. 2, E. 6. None of the options match 1. There might be an error in the question or options provided in the image. However, based on the calculation, the value is 1.