I think its A. but im not really sure sorry
I know its 28 units i had it on a test
Answer:
square root of 81
Step-by-step explanation:

so 9 is rational number.
the rest are irrational number
Answer:
193,153.72460551
Step-by-step explanation:
Multiply 4 times pi or 3.14 if you are rounding. Then multiply that number by 4.6
Lastly once you done all of put it to the po wer of 3