The perimeter of a square is 52 cm.
Calculate the area of the square.

Find three consecutive numbers such that the sum of one-fourth the first and one-fifth the second is five less than one-seventh the third

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Which number line represents the solution set for the inequality -1/2x> 24?