Question 985417
average= total/n
total=n*average
n=6, average is 80, so total has to equal 480.
Total of 5 is 382.
She needs a 98.
Another way to do it is to look at + or - from 80.
test 1 is -5
2 is 0
3 is -8
4 is -19
5 is +14
The sum is -18
That has to be made up with a 98.