Answer :
ANSWER
[tex]A)\text{ }0.423\bar{6}[/tex]EXPLANATION
To represent repeating decimals, we have to write a line over the digit or digits that repeat infinitely.
In this case, the repeating digit is only 6, so we have to write all the other decimals and then 6 with a line over it,
[tex]A)\text{ }0.423\bar{6}[/tex]