using binomial theorim in how many ways can a campaigner manager assign 15 campaigners to three matatus when 6 are in the first matatu 5 in the second matatu and 4 in the third matatu

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