Answer:
6
Step-by-step explanation:
What question did u need help with
Answer:
64
Step-by-step explanation:
Given that an advisor to the mayor of a large city wants to estimate, within 3 minutes, the mean travel time to work for all employees who work within the city limits.
Let X be the random variable denoting the time for employees to travel within city limit
Std dev of X 
For 95% confidence interval Z critical 1.96 is used because population std dev is known
Margin of error 
i.e. 
where n is the desired sample size.
Simplify to get

Hence atleast 64 employees should he poll
The answer is 93. Add all the sides and subtract 267 (which is what you get adding all the sides you have together) from 360.