Help me please it is math lol

What number should be added to both sides of the equation to complete this square? x^2-10x=7

Find the equation of the line with slope =8 and passing through (6,53) write your equation in the form y=mx+b

Which zero pair could be added to the function f(x) = x2 + 12x + 6 so that the function can be written in vertex form? o 3, -3o 6,629,-936, 36