Please let me know what is m<1?

Need ! discuss how to convert the standard form of the equation of a circle to the general form. 50 points

Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =

Need so much on this one how many yards?