Answer:

Step-by-step explanation:
Area of a Circle: 
The r is the length of the radius of the circle
The radius of the shown circle is 9 m


Answer:
You cant add a negative number.
Step-by-step explanation:
If you add a negative number you will not have a full answer.
Answer:
62.73 will be the correct answer
Answer:
The last one (4 sqare root 3)
Step-by-step explanation:
The square root of 16 is 4 so then it would be 4 sqroot 3
X = 11/3 this answer is finding x in this problem