Thomas bought a bottle of shampoo that held 10.5 fluid ounces. he uses 1/16 of the shampoo everytime he washes his hair. how many ounces of the shampoo are left after he washes his hair 6 times?

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