Which statement about prime and composite numbers is true?

Give all possible names for the line shown. calculation tip: lines can be written with either point first.

Plz hurry evaluate the expression a+b where a=8 and b=19

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?