Find all the factors of 38,39 and 40. do they have any factors in common? explain how you can tell if some numbers have factors in common without finding the factors.

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