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Find the value of x for which line a is parallel to line b

Aramp rises 4 feet over a distance of 10 feet. what is the length of the ramp?

Aline has a slope of . which ordered pairs could be points on a parallel line? check all that apply. (-8, 8) and (2, 2) (-5, -1) and (0, 2) (-3, 6) and (6, -9) (-2, 1) and (3,-2) (0, 2) and (5,5)