Final answer:
Todd can refill 7 cages with bird seed.
Step-by-step explanation:
Todd wants to put 1/8 of a kilogram of bird seed in each of the bird cages. He has 7/8 of a kilogram of bird seed left. To find out how many cages he can refill with bird seed, we need to divide the amount of bird seed he has left (7/8) by the amount of bird seed needed for each cage (1/8).
Dividing 7/8 by 1/8, we get:
7/8 ÷ 1/8 = (7/8) * (8/1) = 7
Therefore, Todd can refill 7 cages with bird seed.