Final answer:
Bailey says five odd numbers when counting by nines from 9 to 81.
Step-by-step explanation:
The student is asking how many odd numbers Bailey says when starting with 9 and counting by nines up to 81.
To find the answer, we can list the multiples of 9 within this range and identify the odd numbers.
Multiples of 9: 9, 18, 27, 36, 45, 54, 63, 72, 81.
From the list, we can see that the odd numbers are 9, 27, 45, 63, and 81.
Counting these, we find that there are five odd numbers.