Given an experiment ,can you answer questions about the probability?

2x - 20 = 32 20 - 3x = 8 6x - 8 = 16 -13 - 3x = -10

Im literally having a mental breakdown

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