X-6.6=15.7
a. 9.1
b. 22.3
c. 27.3
d. 32.3

Your answer is B. :)

Step-by-step explanation:

22.3 - 6.6 = 15.7

Work check.

22.3

 6.6

  15.7

(3 gets changed to 13, so it's 13-6 which equals 7. The 2 was changed to 1 to make the 13. So, it gets turned 11-6 which equals 5. The 2 was changed to 1 to make the 11, so you bring the 1 down. Then, just bring the decimal point down and you're done.)

answer: a and c are correct

step-by-step explanation:

the +5 is the vertical translation

the added negative symbol in front is the reflection over the y-axis

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'.