Will mark brainliest answer, please answer !!

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

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