This means u can add zero with any number and still get the same number for example 5 plus 0 is 5
The answer has to be less that 100 but more that 80
I went to see if 92 + 93 + 94 would work but the right answer is 89 + 90 + 91 = 270
Hope it helped
Whats the question point M would be in (-1,-8)