If 1/x + 1/3х = 5, what is the value of 3x/4

What number must you add to complete the square x^2+12x=16

Segment ab is shown on the graph. which shows how to find the x-coordinate of the point that will divide ab into a 2: 3 ratio using the formula

Which graph represents the parent function of y=(x+2)(x-2)