Answer:
4
Step-by-step explanation:
The answer would be E because as you may know, 10 mm is equal to 1 cm. So, 230 mm³ is equal to 23 cm³.
A rational number would be 81/10 or 8.1
Your hypothesis is correct because you substitute 1 to x then add which gives you an answer
Answer: 5=5
The square root of 1/9 is 1/3 and it is a Rational Number.