Find the equation of a circle that has a diameter with endpoints located at (7,3) and (7,-5)?

How do i get the answer for 2/3 * 10/3

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

Which formula finds the probability that a point on the grid below will be in the blue area? p(blue) = total number of squares number of blue squares number of blue squares p(blue) = total number of squares number of blue squares p(blue) = number of white squares