2 numbers are 10 units from 0. If you start from zero and count 10 units to the right, you should be at a positive number. But, you can also move 10 units to the left. If you do this, you should be at a negative number that is ALSO 10 units away from 0, just in a different direction than positive number. both are 10 units from 0. There always 2 numbers, one 10 units to the right of zero, and one 10 units to the left of zero. Hope this helped! Tell me if I'm wrong or right. :)
See Quadratic Formula and Determinant's/Delta's formula
23 since the pattern rules is that we subtract by 3 each time
.27x5= 1.35
.46x9= 4.14
3.1x8= 24.8
