Catherine paid $205.44 for an MP3 player. If the price paid includes a 7% sales tax, which of the following equations can be used to determine the price of the MP3 player before tax? (Let x represent the cost of the MP3 player and y represent the total cost after tax.)
A. y = 0.93x
B. y = x + 7x
C. y = 1.7x
D. y = 1.07x

f

step-by-step explanation:

f

47

step-by-step explanation:

i don't see any

step-by-step explanation:

the answer would be d.

step-by-step explanation:

move all variables to the left side and all constants to the right side

(x−3)^2+(y−1)^2=16

this is the form of a circle. use this form to determine the center and radius of the circle.

( x − h ) 2 + ( y − k ) 2 = r 2

match the values in this circle to those of the standard form. the variable   r   represents the radius of the circle,   h   represents the x-offset from the origin, and   k   represents the y-offset from origin.

r = 4

h = 3

k = 1

the center of the circle is found at   ( h , k ) .

center:   ( 3 , 1 )

these values represent the important values for graphing and analyzing a circle.

center:   ( 3 , 1 ).

radius:   4