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

[EX Q]: Catholic systems comprise _ of the twenty largest healthcare systems in the country.
[EX A]: ten

[EX Q]: Acute sinusitis is any infectious process in the sinus lasting from one day to _ weeks.
[EX A]: three

[EX Q]: Athabascan girls are especially broad-hipped, but have virtually _ buttocks at all.
[EX A]:
no