X-5=square root of 51
Add 5
X=5+7.14. And x= 5- 7.14
12.14. And -2.14.
D
57-39=18 so 39+18=57 so the answer is 18
Answer:

Step-by-step explanation:
If you look at a unit circle it will show you the answer.
Answer:
x≤3 or x>10
Step-by-step explanation:
x≤3 because the dot is a solid dot at 3 and pointing backward toward numbers less than 3.
x>10 because the dot is an open circle pointing toward numbers greater than 10.