Complete the following statement by filling in the box.
Fiona started her own farm with $9$9 cows on it.
By the end of the year, she had $81$81 cows on the farm.
This means Fiona had $\editable{}$ times more cows on her farm by the end of the year.
Amelia has a sunflower that she waters every day.
When she first bought it, it had $5$5 petals.
Now it has $12$12 times that many petals.
Bianca started a company with $7$7 people.
Now, her company has $28$28 people.
Buzz has $7$7 books. Mae has $4$4 times as many books as Buzz.