Math Help

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Brainlist :)

How many terms does the polynomial x^2 y^2 have

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?

Heather is riding a quadratic function that represents a parabola that touches but does not cross the x-axis at x=-6