The limit of a function f at a point a exists if:


Also,

Therefore,

Hence, the limit does not exist
Answer:
16
Step-by-step explanation:
Since the ratio is constant, you can do divisions here.
4/3 = 4/3
6/8 = 4/3
Etc.
From here, you take 12, and multiple it by 4/3, and get 16.
If we need to find the total we can add everything that the store sold in those two hours
15+4+20+11 = 50
Therefore the ratio to produce to the total sold is
15:50