TASK DEFINITION: In this task, find the most appropriate number to replace the blank (indicated with _ ) and express it in words.
PROBLEM: Black women giving birth have a four to _ higher rate of mortality than white women do.

SOLUTION: one

PROBLEM: Sexual maturity occurs at _ years of age.

SOLUTION: ten

PROBLEM: Scientific understanding based on the experimental method has a history of only _ hundred years.

SOLUTION:
three