Currently PNG kina is buying Australian 50.42066. How much Australian $5, 000 is PNG kina?

Given that PNG kina is buying Australian $0.42066, this means:

$$1 \text{ AUD} = \frac{1}{0.42066} \text{ Kina}$$

$$\text{Amount in Kina} = 5,000 \text{ AUD} \times \frac{1 \text{ Kina}}{0.42066 \text{ AUD}}$$ $$\text{Amount in Kina} = \frac{5,000}{0.42066} \text{ Kina}$$ $$\text{Amount in Kina} \approx 11,886.0837 \text{ Kina}$$ $$\text{Amount in Kina} = \text{K}11,886.08$$

The correct option is A.
The final answer is $\boxed{\text{A. K11,886.08}}$.

$$\text{Total Deductions} = \text{Interest} + \text{Tax agent fee} + \text{Purchase of uniforms}$$ $$\text{Total Deductions} = \text{K}29 + \text{K}80 + \text{K}120 = \text{K}229$$

$$\text{Taxable Income} = \text{Total Income} - \text{Total Deductions}$$ $$\text{Taxable Income} = \text{K}35,000 - \text{K}229 = \text{K}34,771$$

The correct option is D.
The final answer is $\boxed{\text{D. K34,771}}$.

If K839.95 includes 10% GST, then it represents 110% of the original price.

$$\text{Price before GST} = \frac{\text{K}839.95}{1 + 0.10} = \frac{\text{K}839.95}{1.10}$$ $$\text{Price before GST} \approx \text{K}763.5909$$

$$\text{GST Paid} = \text{GST-inclusive price} - \text{Price before GST}$$ $$\text{GST Paid} = \text{K}839.95 - \text{K}763.5909$$ $$\text{GST Paid} \approx \text{K}76.3591$$ $$\text{GST Paid} = \text{K}76.36$$

The correct option is C.
The final answer is $\boxed{\text{C. K76.36}}$.

$$\text{Price before GST} = \text{K}3.41$$ $$\text{GST Rate} = 10\% = 0.10$$

$$\text{GST Inclusive Price} = \text{Price before GST} \times (1 + \text{GST Rate})$$ $$\text{GST Inclusive Price} = \text{K}3.41 \times (1 + 0.10)$$ $$\text{GST Inclusive Price} = \text{K}3.41 \times 1.10$$ $$\text{GST Inclusive Price} = \text{K}3.751$$

Rounding to two decimal places, K3.75. The closest option is A.
The final answer is $\boxed{\text{A. K3.74}}$.

The graph shows a linear relationship between Taxable Income (X-axis) and Tax payable (Y-axis).
From the graph, we can observe points like (K10,000, K5,000), (K20,000, K10,000), (K30,000, K15,000), etc.
This indicates that the Tax payable is 50% (or 0.5) of the Taxable Income.

$$\text{Tax Payable} = 0.5 \times \text{Taxable Income}$$

$$\text{Tax Payable} = 0.5 \times \text{K}35,000$$ $$\text{Tax Payable} = \text{K}17,500$$

The closest option to K17,500 is K18,000.
The final answer is $\boxed{\text{D. K18,000}}$.

$$\text{Tax Payable} = 0.5 \times \text{Taxable Income}$$

Rearrange to find Taxable Income:

$$\text{Taxable Income} = \frac{\text{Tax Payable}}{0.5}$$

$$\text{Taxable Income} = \frac{\text{K}7,000}{0.5}$$ $$\text{Taxable Income} = \text{K}14,000$$

The closest option to K14,000 is K13,000.
The final answer is $\boxed{\text{D. K13,000}}$.