Answer:
1` 17/18 PI
Step-by-step explanation:
FORMULA: pi radius squared times height
Answer:

Step-by-step explanation:
The given expression is

First, we need to find the approximate value of the root, because it's not an exact square root.

Then, we multiply this by 

Therefore, an approximate answer for the given product is 
Answer: 20
<u>Step-by-step explanation:</u>
12 is 60% of what number
12 = 0.60 * n
20 = n