Someone me with this math problem

Renita analyzed two dot plots showing the snowfall during the winter months for city a and for city b. she found that the median snowfall is 5 inches less in city a than in city b. the mean snowfall is about 2 inches less in city a than in city b. which explains why there is a difference in the measures of center for the sets of data?

Can someone me with this problem i don't understand i need

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?