Mean = u = 720
Standard deviation = s = 6
Data Value = x = 709
The formula to calculate the z score is:

Using the values, we get:
Thus the z score for the data value will be -1.83.
Answer:
B.
Step-by-step explanation:
The vertical line test is what I used to test this.
Answer: subtract 5 from both sides
Explanation: get rid of the 5 before moving on to isolating the variable
Answer:
Third and forth.
Step-by-step explanation:
Marks up mean increasing the price.