Step-by-step explanation:
around the world which is
2 1/4 which = 9/4 because 2×4=8 and 8+1=9 = 9/4 and then you divide it and see what you get
so hmmm on average on the last 7 test, you get 82, so hmmm we could say that on each of the 7 tests you got 82, so you got 82, 7 times.
now, let's say in the 8th test, you get a grade of "g", now, if we were to get an average of all 8 tests, that means the average will simply be (82*7) + "g", and we know that's 84, so

The answer should be a negative.