Which of the following ordered pairs describe a point that is 8 units up from the x-axis

Write a corresponding real world problem to represent 2x - 125=400

Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10

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 =