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

Q: Pelvic fins are well developed, and rather narrow, with _ to ten fin rays.

A: nine
****
Q: Autism is _ to four times more likely to affect boys than girls.

A: three
****
Q: Oar boats are smaller than motor boats and can accommodate four to _ people.

A:
five
****