Write summation notation for the expression.7 + 14 + 21 + 28 + 35 + 42
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Simplify.7 ? 10 - 7 ? 8
A. 504 B. 14 C. 168 D. 3920
Mathematics
Use a graphing utility to graph the function and then answer the question.The polynomial function 
represents the yearly income (or loss) from a real estate investment, where t is time in years. After what year does income begin to decline?
A. 5.5 B. 8.67 C. 6.5 D. 13
Mathematics
Identify the radicand.
A. y + 2
B. 
C. 
D. y - 2
Mathematics
Simplify.
2 + 
A. 
B. 
C. 
D. 
Mathematics