When comparing numbers, it is best to first ensure that they are as similar as possible. In this exercise, we are given a whole number and a negativeroot.
12, -sqrt(150)
In this case, even though we do not know the exact value of -sqrt(150), we can say it is less than 0, because it is negative.
12> 0 >-sqrt(150)
⇓
12 > -sqrt(150)
Therefore, 12 is greater than -sqrt(150).