In science class, Farah uses a graduated cylinder with water in it to measure the volume of some marbles. She
drops in marbles so that they're all under water and
measures the height of the water.
After dropping in 4 marbles, the height is 10 ml.
After dropping in 6 marbles, the height is 11 mL.
Here are your answers from the previous screen:
Before dropping in any marbles, the height is 0.5 mL.
Each marble increases the height by mL.
What should be the height of the water after 13 marbles
are dropped in?