What are the domain and range of the function f(x)= -log(5-x)+9?

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

In angle pqr find the measure of

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