By what least number should 648 be divided to get a perfect cube

Segment xy is dilated through point m with a scale factor of 2. which segment shows the correct result of the dilation

Use the distributive law to multiply. 3(4x + 5y + 6)

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?