Find the greatest common factor of 21 2121 and 28 2828.

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

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

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.