I received my tickets off an internet site with a discount of 28%. The online sales company then put a 12.5% service fee on my ticket. What percentage of the original price did I get the tickets for?

81%.

Step-by-step explanation:

Let the original price be  x.

With a discount that made it x - 0.28x = 0.72x.

Then we add the service fee of 12.5%:

= 0.72x + 0.125*0.72x

= 0.81x.

So it's 81%.

for the friend request.

when a figure, such as triangle (xyz) is reflected over the line y = x to create x'y'z' the x-coordinates and y-coordinates of the original image (pre-image) will be reversed for the image. (e.g., (x, y) > (y, x)) this means that the pre-image position of the x- and y-coordinates switch places which in turn provides a mirror like image of the original xyz.  

i notice that when i draw a line segment from x to x', that the points are parallel from each other -- they are exactly across from each other and do not intersect with any other points.  

yes, think i would see the same characteristic if you drew the line segment connecting y with the reflecting line and then y' with the reflecting line because of the essence of reflections. because it is a mirror image, each point was effected the same way which leads me to conclude that they same would apply to y and y'.