The question can be solved as follows:

Hence the value of the given expression in scientific notation is expressed as:
I am rocking with C. Jasmine left class for head.
if im wrong let me know
ANSWER
The product is

EXPLANATION
To find the product of

and

means we should multiply the two fractions.
We multiply to obtain,


Cancel the common factors:

Now, multiply the numerators separately and the denominators too separately.

This simplifies to,

If you mean to the nearest HUNDREDTH the answer is 14.60.
Volume = 1/3 pi r^2 h
= 1/3 * 10^2 *81 pi
= 2700 pi units^3
Its C