In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.

[Q]: Placental abruption is _ times more likely to occur in a multiples pregnancy.
[A]: three


[Q]: Temperatures occasionally fall below _ but only last a very short time.
[A]: zero


[Q]: Anemia is a common problem beginning at about _ months of age.
[A]:
nine