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

[Q]: Black people live about _ fewer years, on average, than white people do.
[A]: six


[Q]: Dairy cows live for _ generations, calve and produce normal milk on a protein-free diet.
[A]: six


[Q]: Female cats become sexually mature between _ and twelve months of age.
[A]:
seven