David is making a wall out of bricks. Each brick is 2/3 foot long. there are 20 bricks lined up end to end to make the wall.

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

Mr. walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?

(60 points) explain this in detail