Question

can any body tell me the answer?
Catherine paid $218.00 for an MP3 player. If the price paid includes a 9% sales tax, which of the following equations can be used to determine the price of the MP3 Player before tax?

Answer 1

(Let x represent the cost of the MP3 player and y represent the total cost after tax.)
y = 0.91x
y = 1.9x
y = x + 9x
y = 1.09x
these are the choices

Answer 2

x represents the cost of the MP3 player

y represents the total cost after tax

9% = .09

x = 1*x
----------------------------

The cost of the player + .09 * cost of the player = 218

y = x + .09*x

y = 1*x + .09*x

y = ?

@miracle223