Question 46143
This is easy enough to do yourself:

To find the "median" of a set of numbers means to find the "middle" number in the set.

So first arrange the numbers in order of smallest-to-largest.

16, 17, 19, 21, 28, 35, 43

Hint: After you have done this, count the number of numbers to be sure you copied them all.  A common mistake is to miss one or more of the numbers.

Now look for the number in the middle (the median).

Did you find 21?