A circle has a diameter of 16 inches. Which formula represents how to find the area of the circle?

Which problem could be  solved  by evaluating the expression  7×(−3)7×-3?

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?

Find the commission on a $590.00 sale if the commission is 15%.