Perform the indicated operation. Assume that all variables are nonnegative.
- 2
+ 6
A. 4
B. 39
C. 39
D. 4
Answer: C
Mathematics
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Solve the system by the elimination method. x - 5y = 20-7x - 4y = 16
A. {(1, -5)} B. {(0, -4)} C. ? D. {(4, 0)}
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Find the values of x for which the equation is true.
- 6 = 1
A. -5, 5 B. -7 C. 7, -7 D. 7
Mathematics
Solve the problem.During a department store sale, 30 shoppers bought only clothing, 5 shoppers bought only towels, and 15 shoppers bought both clothing and towels. If 100 people shopped that day and a shopper is chosen at random, what is the probability that the shopper has bought towels?
A. 
B. 
C. 
D. 
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Draw a complete graph so that it has the given type of symmetry.Symmetric with respect to the y-axis
A. 
B. 
C. 
D. 
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