5x+20=55 what does x equal?

Thee blue triangle has rotated from quadrant i to quadrant iii about the origin. describe the effects of the rotation on the coordinates of the blue triangle.

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12

Laura read 1/8 of a comic book in 2 days. she reads the same number of pages every day. what part of the book does she read in a week