Well, It would be hard to write out the formula and everything here so I wrote it out for you! Work shown!
Answer:
1/2
Step-by-step explanation:
I think the answer may (0,0). This is just a guess
Let n be the total number of puffs. Now we can write:

Adding the fractional value of n, we get:

Simplifying and rearranging gives us:

Therefore we can simplify to get:

and finally

The fraction of the puff that are tuna is found from:
Answer:
A. -1
B. 1
C. 3
D. -2
yes
Step-by-step explanation: