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

[EX Q]: Sweet corn accounts for about _ per cent of total corn production in Ontario.
[EX A]: five

[EX Q]: Some dentists prefer using the oral rinse for _ to five days at a time.
[EX A]: three

[EX Q]: All birds have two legs with _ toes each.
[EX A]:
four