Explain how you can use base-ten blocks or as a decimal models to find 3.15 divided by 3. include pictures to support your explanation

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent and the median amount spent? 40 25 8 36 18 15 24 27 43 9 12 19 22 34 31 20 26 19 17 28