What is the minimum value of the function graphed below?

What is the missing constant term in the perfect square that starts with x^2 -20x

Which expression is equivalent to -5(3x - 6/7)

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?