What are two numbers that multiply to -28 and add to 3?

Which value would be a solution for x in the inequality 47-4x< 7

Which of the following contains a variable?

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