The second proposal we’ll consider is a modified flat-tax plan, where everyone only pays taxes on any income over $20,000. So, everyone in group A will pay no taxes. Everyone in group B will pay taxes only on $9,000.

Determine the total taxable income for the whole population.
Complete this table for both the plans

To determine the total taxable income for the whole population, we need more information about the income distribution of the population. Without this information, it is not possible to calculate the total taxable income for the entire population.

However, I can help you complete the table for both plans based on the information provided.

Plan 1: Current Tax System
| Group | Taxable Income |
|-------|----------------|
| A | Total Income |
| B | Total Income |

In the current tax system, everyone is subject to taxes on their total income. Therefore, the taxable income for both Group A and Group B would be equal to their total income.

Plan 2: Modified Flat Tax Plan
| Group | Taxable Income |
|-------|----------------|
| A | $0 |
| B | $9,000 |

Under the modified flat-tax plan, Group A does not have any taxable income since they are not required to pay any taxes. Group B has a taxable income of $9,000, as they will only pay taxes on the amount exceeding $20,000.

Please note that these calculations are approximate based on the given information. For a more accurate analysis, we would need the specific income distribution within each group.

To determine the total taxable income for the whole population, we need to consider the income of each group and subtract the threshold.

For the flat-tax plan, where everyone only pays taxes on income over $20,000:

Group A: Everyone in group A will pay no taxes, so their taxable income is $0.
Group B: Everyone in group B will pay taxes only on $9,000. Hence, their taxable income is $9,000.

To calculate the total taxable income for the whole population, we sum up the taxable income of each group:

Total taxable income = Taxable income of Group A + Taxable income of Group B

Total taxable income = $0 + $9,000
Total taxable income = $9,000

Now, let's complete the table for both plans:

| Flat-tax plan | Modified flat-tax plan
---------------------------------------------------------
Group A | $0 | $0
Group B | $9,000 | $9,000
---------------------------------------------------------
Total taxable income | $9,000 | $9,000

Therefore, for both plans, the total taxable income for the whole population is $9,000.

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