Find the probability of the event.When a single card is drawn from an ordinary 52-card deck, find the probability of getting a black 7.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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The following table shows the U.S. population, in millions, in the given year.
19601970198019902000
179.32203.3226.54248.71281.42?
Calculate the average rate of change from 1980 to 1990.
A. 2.22 million people per year B. 22.17 million people per year C. 1731.40 million people per year D. None of the above
Mathematics
Evaluate the expression.
A. does not exist B. 0
Mathematics
Find an equation that meets the given conditions.y varies inversely as x and y = 4 when x = 2
A. y = 2x
B. y = 
C. y = 
D. y = 
Mathematics
Simplify.?-22?
A. 22 B. 44 C. -22 D. 0
Mathematics