Answer:
You have to divide to unit price, 169/13 is equal to 13!
Step-by-step explanation:
Answer:

Step-by-step explanation:
Given
-- degree of freedom

Required
Determine the t-value
The given parameters can be illustrated as follows:

Where

So, we have:

To solve further, we make use of the attached the student's t distribution table.
From the attached table,
The t-value is given at the row with df = 28 and
is 3.673900
Hence, 
Answer:
c is not a fuction
Step-by-step explanation:
Answer: B
Step-by-step explanation:
510 divided by 2 = 255 divided by 85 is 3