Solve the problem.The following Venn diagram describes the optional features ordered by new telephone customers in a certain region. Use it to determine how many customers ordered call waiting.
A. 77
B. 36
C. 76
D. 40
Answer: C
Mathematics
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Given p is true, q is true, and r is false, find the truth value of the statement.(~p ? q) ? ~r
A. True B. False
Mathematics
Find the least common multiple of the denominators of the fractions.
, 
A. 4356 B. 792 C. 2904 D. 8712
Mathematics
Solve the problem.The population of a particular city is increasing at a rate proportional to its size. It follows the function 
where k is a constant and t is the time in years. If the current population is 50,000, in how many years is the population expected to be 125,000? (Round to the nearest year.)
A. 10 yr B. 13 yr C. 23 yr D. 153 yr
Mathematics
Find the probability.A card is drawn from a well-shuffled deck of 52 cards. What is the probability of drawing a face card or a 4?
A. 
B. 
C. 
D. 16
Mathematics