To find Jill’s tax based on her earnings above $10,000, we start by understanding the tax rate and the income threshold. Jill pays 20 cents for every dollar earned over $10,000. This means for any income (denoted as x) that exceeds $10,000, we can express her tax obligation.
The amount earned over $10,000 can be represented as x – 10,000. Since Jill pays 20 cents on each dollar earned above this threshold, we can write her tax as:
Tax = 0.20 * (x – 10,000)
To put this in expanded form, we distribute 0.20:
Tax = 0.20x – 2,000
Thus, Jill’s tax on earnings greater than $10,000 can be expressed in expanded form as 0.20x – 2000.