Simply divide 3 by 0.7,

Or ≈ 4.28571 which is ≈ 4 years.
A rational number is any number that can be expressed as a fraction
(ex: -5/2, 4 1/7, and 8/13)
An irrational number is any number that cannot be expressed as a fraction; a non-repeating, non-terminating decimal (ex: pi, 0.121231234...)
Hope this helps! :)
Answer: bAKAKAKAKAKAKAKAK ✔
Step-by-step explanation: