Given the functions f(x) = 7x 13 and g(x) = x2 2, which of the following functions represents f[g(x)] correctly? f[g(x)] = 7x2 27 f[g(x)] = 7x2 15 f[g(x)] = 49x2 182x 169 f[g(x)] = 49x2 182x 171.

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?