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

[EX Q]: Many people spend _ or more hours a day working for someone else.
[EX A]: eight

[EX Q]: Cats nurse their kittens up to _ weeks long.
[EX A]: eight

[EX Q]: Food allergies impact _ to six percent of young children in America.
[EX A]:
four