Graph the linear function. Give the domain and range.f(x) = 
x
A. Domain: (-?, ?)
Range: (-?, ?)
B. Domain: (-?, ?)
Range: (-?, ?)
Answer: B
Mathematics
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Find the sum of the series.
A. 84 B. 63 C. 126 D. 42
Mathematics
Find the indicated limit, if it exists.
?
?
A. 
B. 
C. 
D. 
E. The limit does not exist.
Mathematics
Solve the problem.Suppose that the width of a rectangle is 5m and its length is 15m. Write an algebraic expression for the area of the rectangle in terms of m.
A. 75m2 B. 75m C. 150m D. 20m
Mathematics
Solve the problem.Helen Weller invested $11,000 in an account that pays 12% simple interest. How much additional money must be invested in an account that pays 15% simple interest so that the average return on the two investments amounts to 13%?
A. $7000 B. $8000 C. $5500 D. $11,000
Mathematics