What number must you add to complete the square? x2 + 22x = 9

What is the distance between (–2 1/2,-3) and (1, –3)?

Which of the following equations is of the parabola whose vertex is at (4, 3), axis of symmetry parallel to the y-axis and focus at (4, -3)? a.) y+3=1/24 (x+4)^2 b.)y-3=-1/24 (x-4)^2 c.)x-4=-1/24 (y-3)^2

How far could you drive on 50 gallons of gas