instruction:
In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
question:
Adolescent suicide is approximately _ times higher than the national average.
answer:
three


question:
Frozen grafts can have a shelf life of up to _ years.
answer:
five


question:
Redness persists for an unpredictable length of time, varying from three weeks to _ months.
answer:

four