The final price of the dress will be 48 dollars.
The price of the dress is 40 dollars before tax is added on, and tax is 20 percent. The final price of the dress after tax can be calculated as follows:
Therefore,
price before tax = 40 dollars
The tax is 20 percent.
Hence,
tax = 20% of 40
tax = 20 / 100 × 40
tax = 800 / 100
tax = 8 dollars
Therefore, the price of the dress after tax = 8 + 40 = 48 dollars.
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