∠c and ∠d are vertical angles with  m∠c=−2x+90 and  m∠d=x−30 .   what is m∠d ?

For what value of x does 4x = (1/8) x + 5?

Acylinder has volume 45π and radius 3. what is it’s height?

When the solutions to each of the two equations below are graphed in the xy-coordinate plane, the graphs of the solutions intersect at two places. write the y-cordninates of the points of intersection in the boxes below in order from smallest to largest. y=2x y=x^2-3