Explain, step by step with details how to solve. Your answer should be as a mixed number in simplest form 5 1/4 - 3 4/5
(Please please please show your work, I need to get this done)

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 .

65 8 7 4 5 6 8 4 3 2 1 9 5 6 4 2 1 6 5 1 5 1 3 2 3 5 multiply the third number in the first row by the seventh number in the third row. add this result to the fifth number in the second row. add to this total ten times the fourth number in the third row. subtract the eighth number in the first row from the result.

An equation in slope-intersept form the lines that passes thought (-8,1) and is perpindicular to the y=2x-17.