To find the price including tax (9%) you have to multiply it by 1.09.
y=9(1.09)
y=9.81
$9.81
Hope I helped...
It is equal to 357 i added it and thats the answer
3x - y = 3.....3x - 3 = y
1/4x + 2/3(3x - 3) = -17/4
1/4x + 2x - 2 = -17/4 ...multiply everything by 4
x + 8x - 8 = -17
9x = -17 + 8
9x = - 9
x = -1
3x - y = 3
3(-1) - y = 3
-3 - y = 3
-3 - 3 = y
-6 = y
solution is (-1,-6)
5. Y=1/2x+12
6. Y=4x+8
7. Y=1/4x+256