How do i transform the equations 5x+4y=8 and -2x+5y=30 so that they are in the form that y=mx+b?

Find the roots of the equation below. x^2 - 6 + 9 = 0

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

Draw a scaled copy of the circle using a scale factor of 2