Help please this is due soon

See below :)

Step-by-step explanation:

positive x positive = positive ex. 4 x 5 = 20

negative x negative = positive ex. -4 x -5 = 20

negative x positive = negative ex. -4 x 5 = 20

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Mrs. Krin pays $5,400 in a year

exp; 300 + 150 = 450

450 x 12 (12 months in a year)

450 x 12 = 5,400

2500

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'.