Find the average of the numbers.14, 7, 7, 14, 13
A. 56
B. 13.75
C. 10
D. 11
Answer: D
Mathematics
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Simplify the complex fraction.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.A merchant has coffee worth $4 a pound that she wishes to mix with 7 pounds of coffee worth $7 a pound to get a mixture that can be sold for $5 a pound. How many pounds of the $4 coffee should be used?
A. 7 lb B. 14 lb C. 21 lb D. 10.5 lb
Mathematics
Use the substitution method or the elimination method to solve the system. If the system has infinitely many solutions, express the ordered pair in terms of x or y.5x + 7y = 225x + 2y = 42
A. ( -10, 5) B. (-10, 7) C. (-4, 10) D. (10, -4)
Mathematics
Use the order of operations to evaluate the expression.7 + 92 - (-2) ? 7
A. 602 B. 74 C. 102 D. 189
Mathematics