Need help on this quick

Which expressions are equivalent to -6 + 3m

Line u passes through points (-52, -18) and (-29, 53). line v passes through points (90, 33) and (19, 56). are line u and line v parallel or perpendicular?

Use a standard normal table to determine the probability. give your answer as a decimal to four decimal places. −1.5< < 1.5)