One minus the quotient of one and a number x

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

Solve the equation by completing the square. x^2+2x=17

The point of intersection of the diagonals of a rectangle is 4 cm further away from the smaller side then from the larger side of the rectangle. the perimeter of the rectangle is equal to 56 cm. find the lengths of the sides of the rectangle. 16 points answer quick