What’s 10 times 2 to the fifth power

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

Find the volume of the described solid.the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x.a) 441b) 147c) 864d) 882

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?