PLEASE HELP I NEED TO SUBMIT THIS (i'll give you a naughty price ;) )Use the Law of Cosines to determine c to the nearest tenth of a centimeter. Group of answer choices

Can someone me out here and the tell me the greatest common factor

Acircle has a circumference of 28.36 units what is the diameter of the circle

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