So you would just have to divide 20/7 to get the percentage of it.
The answer would be 2.85%.
Answer:
See below.
Step-by-step explanation:
The domain which is all the posible values of x is: x is real and in the interval
[1, 6].
The range is real f(x) in the interval [1, 7].
If you divide 128 cookies by 8 trays, you'll get 16.
Therefore, theres 16 cookies baked in each 8 trays.
Consider expression 
1. Use property

Then

2. Use property

Then

3. Use property

Then

4. Use property

Then

Answer: correct option is B.