In science class, Jada uses a graduated cylinder with water in it to measure the volume of some marbles. After dropping in 4 marbles so they are all under water, the water in the cylinder is at a height of 10 millimeters. After dropping in ó marbles so they are all under water, the water in the cylinder is at a height of 11 millimeters. What should be the height of the water after 13 marbles are dropped in?​