Item: c = p(1 + ). What is the final cost of a $40 item after an 8% tax is applied?
1 answer:
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Answer:
A
Step-by-step explanation:
Remember that x^(b-c)
Using that =3^(1/2x-1/2)=3^((x-1)/2)
So we can say: , because the bases are the same
We can multiply both sides of the equation by 2. We get x-1=2, and x=3. Which is A.