Answer:
‘I’m going to make a big request of you to-day,’ he said . . . ‘so I thought you ought to know something about me. I didn’t want you to think I was just some nobody. You see, I usually find myself among strangers because I drift here and there trying to forget the sad thing that happened to me.’
Explanation:
this is important because this is him expressing himself and making an announcement that he is someone
You know that the sum of a and b is 24, because the average is the sum of the numbers divided by the amount of numbers added together, and 12*2 is 24. Add 3 to 24 so you have 27, and then divide that by 3 because there are now 3 numbers in the set. The average of a, b, and c is 9.