Solve the problem.3 times a number less than 7 times the same number is 40. Find the number.
A. -10
B. 10
C. 1.8
D. 4
Answer: B
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Find the domain of the rational function. Write your answer in set-builder notation.f(x) = 
A. {x|x ? -3, 9, 0}
B. {x|x ? -9, -3, 0}
C. 
D. 
Solve the problem.A computer network is to be built by connecting two "server" computers to 6 "client" computers. Each client computer is connected to each server by a single cable. Also, the two servers are connected by a single cable. Draw a graph with vertices representing computers and edges representing cables. How many cables are required? Is the graph of the network a complete graph?
What will be an ideal response?
Solve the quadratic inequality. Graph the solution.v2 + 11v + 28 ? 0
A. (-?, -7]
B. [-7, -4]
C. (-?, -7] ? [-4, ?)
D. [-4, ?)
The given function is not defined at a certain point. How should it be defined at that point to make it continuous at that point?f(x) = 
A. Define f(1) = - 10 B. Define f(1) = - 8 C. Define f(1) = - 9 D. Define f(1) = 9