Pizza-by-the-slice sells 7 slices every 10 minutes on average. how many
slices should they expect to sell in 8 hours? explain how you decided.

Step-by-step explanation:

Expected in answer is 336.

Explanation: As we know that Pizza-By-The-Slice sells & slice in 10 and in ! hour we have 60 minutes so we simply multiply 7 by 6 which is equal to 42 so they sell 42 slice in 1 hour and we want to know the how much they sell in 8 hours so we simply multiply 42 by 8 and we get the expected slice sell in * hours which will 336.

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'.