Round 21.25 to the nearest whole number

Use the quadratic formula to solve 5x=6x^2-3,what are the values of x?

How do the number line graphs of the solutions sets of -23 > x and x-23 differ?

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