Let A and B be sets with cardinal numbers, n(A) = a and n(B) = b, respectively. Decide whether the statement is true or false.If B ? A, n(B) = n(A - B).
A. True
B. False
Answer: B
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Solve the problem.100 employees of a company are asked how they get to work and whether they work full time or part time. The figure below shows the results. If one of the 100 employees is randomly selected, find the probability that the person does not work full time.
1. Public transportation: 10 full time, 7 part time2. Bicycle: 3 full time, 5 part time3. Drive alone: 32 full time, 27 part time4. Carpool: 10 full time, 6 part time
A. 0.55 B. 0.45 C. 0.40 D. 0.27
Find the average of the list of numbers.62, 56, 48, 52, 62
A. 55 B. 62 C. 56 D. 48
Evaluate the logarithm without the use of a calculator.log7 
A. 
B. - 
C. 7
D. - 
Find the least common denominator.
and 
A. (x - 3)(x + 6)(x - 2) B. (x - 6)(x - 2) C. (x + 3)(x - 6) D. (x + 3)(x - 6)(x - 2)