Answer:
80 days
Explanation:
We know that your cat eats 0.1 ounces of tuna per day, we need to find out how many days you can feed 8 ounces of tuna fish.
We need to keep in mind that 0.1 is a very tiny portion, and to get reach 1, your cat would have to eat 0.1 ounce everyday for 10 days, because 0.1 * 10 = 1
Now since we know it takes 10 days to reach 1 ounce, we need to see how many times it'll take for 10 days to reach 8 ounces.
10 * 8 = 80
Therefore it'll take 80 days to reach 8 ounces.