Answer:
[0, infinity)
Step-by-step explanation:
The square root is a function that is not defined for negative values, since they belong to another space, the complex space.
Having that in mind that means
x>=0
That's it
$10
2) 11
3) 21
4) 7
2) (-6) -(-17) = 17 - 6 = 11
3) 19 - (-2) = 19 + 2 = 21
4) (-13) + 20 = 20 - 13 = 7
150 minus 30 equals 120 but i did 150/30 and got 5