Find the area of an equilateral triangle with a side length of 12 inches. a. a = 36 sq. in. c. a = 108 sq. in. b. a = 108 sq. in. d. a = 36 sq. in.

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?