Rubin earns $8.50 per hour. How long must Rubin work to earn $136, which he needs in order to purchase a new exercise bike?

16 hours

Step-by-step explanation:

136/8.50=16

16

Step-by-step explanation:

You make it a ratio 8.5/1=x/136 and then you can make it into 8.5x=136 and divide 8.5 to both sides to get the variable by itself and 136/8.5=16

d≈7.07in

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'.