Final answer:
The part of the expression that represents the amount of tax Deborah must pay is 0.06(50h).
Step-by-step explanation:
The part of the expression that represents the amount of tax Deborah must pay is 0.06(50h).
In the given expression, the term 0.06(50h) represents 6% of the total cost after tax, which is calculated by multiplying the number of hours it takes to repair Deborah's computer (h) by 50 and then multiplying it by 0.06 (or 6%). This represents the amount of tax Deborah must pay.
For example, if it takes 2 hours to repair the computer, the amount of tax Deborah must pay would be 0.06(50 * 2) = $6.