<span>In getting the value of R in the formula of the circumference that you give where as the circumference is equals to 15, the derived formula is R=C/2pi and the answer would be that R is equals to 2.39. I hope you are satisfied with my answer and feel free to ask for more if you have more questions and further clarifications </span>
Answer:
b
Step-by-step explanation:
<h3>
Answer: 4</h3>
========================================================
Work Shown:
Note in step 2, I factored each number in the square root to pull out the largest perfect square factor. From there, I used the rule that 
to break up the roots.
She would have to first pick some books that she feels is popular then maybe when she gets to the cafeteria she can pick 10 random kids from each table and ask them which the thinks is the best book
