Sean, an office manager, needs to find a courier to deliver a package. The first courier he is considering charges a fee of $20 plus $1 per pound. The second charges $8 plus $3 per
pound.
Sean determines that, given his package's weight, the two courier services are equivalent in
terms of cost. How much will it cost to deliver the package? How much does Sean's package
weigh?

757764

step-by-step explanation:

de77737dd

add an image

step-by-step explanation:

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'.