Evaluate the function.If r(x) = 
, find r(a - 7).
A. 
B. 
C. - 
a + 
D. 
- 
Answer: A
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Solve the problem.A circular fountain has a statue in its center, 8 m from the edge. What is the distance around the fountain?(Use 3.14 for ? .)
A. 50.24 m B. 25.12 m C. 48.24 m D. 64 m
Solve the problem.The mathematical model 
represents the cost in dollars a company has in producing x items during a month. Based on this, how much does it cost to produce 
? Interpret the question and answer using function notation.
A. $140,000; f(200) = 140,000 B. $240,000; f(240,000) = 200 C. $240,000; f(200) = 240,000 D. $140,000; f(140,000) = 200
Find the domain of the composite function f ? g.f(x) = 7x + 42; g(x) = x + 10
A. {x 
B. {x 
C. {x 
D. {x 
Using the given zero, find all other zeros of f(x).2 + 6i is a zero of f
= x4 - 16x3 + 124x2 - 624x + 1440.
A. 2 - 6i, 6, and -6 B. 2 - 6i, 6 C. -2 + 6i, 6, and -6 D. 2 - 6i, -6