I agree with you on this problem. It is A. If that is the final answer, the negative exponent must be flipped in order to be positive. According to the equation, it is not positive so it is not a simpflied polynomial.
First you would take 20% off the orignal price giving you 30.4$ after that you take 10% of 30.4 to get 27.36$.
Answer
Find out the what was the price of the stereo .
To prove
Let us assume that the price of the stereo be x .
As given
Consumer Math The sales tax in the town where Amanda lives is 7%.
7% is written in the decimal form

= 0.07
As given
Amanda paid $35 in sales tax on a new stereo .
Than the equation becomes
x × 0.07 = 35

solving the above
x = $ 500
Therefore the price of the stereo is $ 500 .
Hence proved
Well using distance formula

The answer I got was Distance = 45.9 what ever unit of measure it might ask for. Feel free to check my math just in case.
Answer:
2x^3-6x^2-14x+24
Step-by-step explanation: