A pair of Descartes jeans costs $120. If the tax is 13%, how much does the pair of jeans cost including tax?
2 answers:
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Answer:
Step-by-step explanation:
We need to apply the following identity:
Then, applying this, you know that for :
We need to remember that:
and
Therefore, we need to substitute these values into .
Then, you get:
Answer:
Step-by-step explanation:
