Lily and Edna just had business cards made. Lily's printing company charged a one-time setup fee of $10 and then $10 per box of cards. Edna, meanwhile, ordered hers online. They cost $8 per box. There
was no setup fee, but she had to pay $20 to have her order shipped to her house. By coincidence, Lily
and Edna ended up spending the same amount on their business cards. How many boxes of business
cards did each buy?
Write a system of equations, graph them, and type the solution.

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'.

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step-by-step explanation:

t hope this

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