Go online to this link and enter your numbers in their calculator, which will give you your answers:
http://www.calculatorsoup.com/calculators/statistics/mean-median-mode.php
To find the mean, add all the numbers together and divide by the number of numbers.
To find the median, rearrange the numbers so they are listed from smallest to largest, and take the middle number as the median.
The mode is the number that is used the most often.