20 POINTS HELP ASAP Using the following equation, find the center and radius: x2 + 2x + y2 + 4y = 20

The center is located at (1, 2), and the radius is 25.

The center is located at (−1, 2), and the radius is 25.

The center is located at (−1, −2), and the radius is 5.

The center is located at (1, 2), and the radius is 5.

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 =