Find the domain of the rational expression.
A. {x|x is a real number and x ? -1 and x ? 7}
B. {x|x is a real number and x ? -1}
C. {x|x is a real number and x ? 7}
D. {x|x is a real number}
Answer: D
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Solve the equation.ex - 5 = 
x + 4
A. 
B. 
C. 
D. 
Solve the problem.At Allied Electronics, production has begun on the X-15 Computer Chip. The total revenue function is given by 
and the total profit function is given by 
, where x represents the number of boxes of computer chips produced. The total cost function, C(x), is such that 
Find C(x).
A. C(x) = 7x + 15 B. C(x) = 6x + 10 C. C(x) = 8x + 6 D. C(x) = -0.3x2 + 12x + 10
Choose the graph that satisfies the given conditions.Polynomial of degree 3 with three distinct x-intercepts and a positive leading coefficient
A. 
B. 
C. 
D. 
Write the number without exponents.8.0929 × 10-7
A. 0.00000080929 B. 0.0000080929 C. 0.000000080929 D. -809,920,000