Answer :
Answer:
D. 31
Step-by-step explanation:
First, you have to order the set of numbers.
22, 25, 28, 31, 34, 37, 40
Then, you add the lowest number (22) with the greatest number (40).
22 + 40 = 62
Finally, you divide the sum (62) by 2.
62/2 = 31
D is your answer because you will have to put them in order from least to greatest