Simplify 11x+3y-5x-2y
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Describe all the numbers that when rounded to the nearest thousand are 645,000

How do you answer this question? (step by step)

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 .