Solve the problem.The cost C of producing t units is given by C(t) = 3t2 + 8t, and the revenue R generated from selling t units is given by 
For what values of t will there be a profit?
A. There will be a profit when more than 9 units are sold.
B. There will be a profit when more than 7 units are sold.
C. There will be a profit when more than 8 units are sold
D. There will be a profit when 0 units are sold.
Answer: B
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Solve for x.log3(x + 2) = 2
A. 10 B. 6 C. 11 D. 7
Simplify. 
A. 
B. 
C. 
D. 
Use the given graph of a quadratic function to find the vertex, axis of symmetry, y-intercept, and x-intercept(s).
A. vertex: (-1, 4) axis of symmetry: x = -1 y-intercept: 3 x-intercepts: 1 and - 3 B. vertex: (-1, 4) axis of symmetry: x = -1 y-intercepts: 1 and - 3 x-intercept: 3 C. vertex: (4, -1) axis of symmetry: x = 4 y-intercepts: 1 and - 3 x-intercept: 3 D. vertex: (-1, 4) axis of symmetry: x = 4 y-intercept: 3 x-intercepts: 1 and - 3
For a test question, a mathematics teacher wants to find two constants a and b such that the test item "Simplify 
)" will have an answer of 
. What constants should the teacher use for a and b?
? a = __________ ? b = __________ What will be an ideal response?