Find three consecutive odd integers such that the sum of the middle and largest integer is 21 more than smallest integer.

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

How do i do this activity, is appreciated

If using the method of completing the square to solve the quadratic equation x 2 + 16 x + 24 = 0 x 2 +16x+24=0, which number would have to be added to "complete the square"?