If angle 1 measures 17x and angle 2 measures 19x then what are angle 3 and 4?

Find the greatest common factor of the followig monomials 21u^5v,3u^4v^6, and 3u^2v^5

Is this a polynomial function? i need to know asap

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π