Answer:
C. 12 teacher editions and 260 student editions
Explanation:
We can use division to solve this problem
65 ÷ 3 = 21.66... we can round this to 22 student ones we get 1 teacher copy.
A. 260 ÷ 9 = 28.99... we can round to 29 students ones we get 1 teacher copy so this one isn't correct.
B. 325 ÷ 12= 27.083... we can round to 27 students ones we get 1 teacher copy so this one isn't correct.
C. 260 ÷ 12 = 65 ÷ 3 = 21.66... we can round this to 22 student ones we get 1 teacher copy so this option is correct
C
Is the only correct option