What is 2+ -4 + 5 + -6

Given a(-12,5) and b(12,29) find the point that divides the line segment ab three-eighths of the way from a to b

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

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?