Answer
55 divided by 5 = 11
Step by step explanation
Assume that we have 55 balls, we have to group 5 balls in each group.
How many group can we form?
The number of groups = 55/5 = 11
Use can see it in the picture.
We have to explain with pictorial method.
I have attached the figure.
Hope this will helpful.
Thank you.
Answer:

Step-by-step explanation:
Step 1
Find the radius of the circular cross section
we know that
The circumference is equal to

we have

substitute and solve for r

simplify


Step 2
Find the area of the circular cross section
The area of the circle is equal to

we have

substitute


$478 by using the provided formula ...
Explanation : income = $523 , expense = $ 45 , profit =523-45= 478