Although, here are no expressions ! it's an incomplete question. So, showing the answer with general simplification 
.
<u>Step-by-step explanation:</u>
We have the expression as (5.4x10^10) (3.3x10^21) which can be further simplified as :
⇒(5.4x10^10) (3.3x10^21)
⇒
keep the power terms together and numbers to simply. Hence, we get as below
⇒ 
⇒
By solving the above, we get final simplified answer as
⇒
Although, here are no expressions ! it's an incomplete question . You may match to the listed options wherever!
Answer:
B) Rational
Step-by-step explanation:
The square root of .0081 is .09, which is a very real number
43.3% All you need to do is move the decimal two places to the right and there you go.
I'm pretty sure it is.
If i'm wrong, I'm truly sorry
One way to understand division is to look at it as repeated
subtraction. When you "divide by" a divisor number, you're
asking "how many times can I subtract this divisor from the
dividend, before the dividend is all used up ?".
Well, if the divisor is ' 1 ', then you're taking ' 1 ' away from the
dividend each time, and the number of times will be exactly
the same as the dividend.
If the divisor is more than ' 1 ', then you subtract more than ' 1 '
from the dividend each time, and the number of times you can
do that is less than the dividend itself.
If the divisor is less than ' 1 ', then you only take away a piece of
' 1 ' each time. You can do that more times than the number in
the dividend, because you only take away a piece each time.
