In parallelogram ABCD, AC=14 and BD=2x+4. What value of x makes this parallelogram a rectangle? show work.

The verbal translation for the difference of m and 7 increased by 15

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm

At oaknoll school, 90 out of 270 students on computers. what percent of students at oak knoll school do not own computers? round the nearest tenth of a percent.