What’s the Answer for this ??

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?

Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test

Hundred and tens tables to make 430 in five different ways