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Which expression is equivalent to 5r6141 2r+st6

Write an equation of the line that passes through 9,2 and is parallel to the line y=5/3x+9

The serenity and the mystic are sail boats. the serenity and the mystic start at the same point and travel away from each other in opposite directions. the serenity travels at 16 mph and the mystic travels at 19 mph. how far apart will they be in 3 hours?