Including a 6% sales tax, a new stereo costs $429.3. Find the cost of the stereo before tax.
A) First write an equation you can use to answer this question. Use x as your variable and express any percents in decimal form in the equation. (1)
The equation is
B) Solve your equation in part [A] to find the original price of the stereo.
Answer: The original price of the stereo before tax was dollars.