PLEASE I NEED HELP FOR THIS TEST Simplify the difference. Write your answer in standard form.
2) (8r - 4r + 8) - (5r - 8 + 7r")
A) -24r + 3r + 16
B) 3r + 13r + 16
C) -11p+ 3r + 16
D) -317 + 3r + 16

Classify the polygon by its number of sides. state whether the polygon appears to be regular or not regular. a. heptagon, regular b. heptagon, not regular c. octagon, regular d. octagon, not regular

Polygon mnopq is dilated by a scale factor of 0.8 with the origin as the center of dilation, resulting in the image m′n′o′p′q′. the coordinates of point m are (2, 4), and the coordinates of point n are (3, 5). the slope of is .

Which expression gives the area of the triangle shown below