What are the cardinal numbers of the sets A = {∅}, B = {1, 2, 3, 4, 10} and C = ∅?

The diagram below represents the number of people who purchased certain car options.  Use it to answer the following questions.   How many cars had the safety package?  How many cars have just leather upholstery?  How many cars had none of the options?  How many cars have a stereo system but don’t have leather upholstery?  How many cars have all three options? 

Write the set {x ∈Write the set| -2 ≤ x < 5} using the roster notation. Enter your result in the box below.  

If A = {1, 2, 5, 8}, B = {3, 6, 8, 10) and C = {1, 8, 9, 12} and U = {1, 2, 3, …, 12}.  Find (A ∪ B)∩ C and (A – C) ∪ B’.  Show your work and results in the file that you upload.  Don’t enter your results here.

How many subsets does the set {a, b, +, -} have?  How many proper subsets does it have?  Enter your results in the box below.

Which of the following is a part of the process of outsourcing analyses?

Some of the major ways of increasing employee productivity are organizational restructuring, redesigning work, aligning human resource activities, and outsourcing analyses

Which of the following is a part of the staffing function of human resource management? 

A person with the responsibility of performing a variety of human resource activities is known as a human resource specialist. 

Which of the following is a part of the process of aligning human resource activities?