The sum of two numbers is 67. the smaller number is 3 less then the larger number. what are the two numbers?

Let r = 3. what is the value of r + 58?

Astudent simplified a rational expression as shown.

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