Describe the situation with a linear inequality and then solve the inequality.When making a long distance call from a certain pay phone, the first three minutes of a call cost $1.60. After that, each additional minute or portion of a minute of that call costs $0.25. Use an inequality to find the number of minutes one can call long distance for $5.85.
A. ? 23 minutes
B. ? 4 minutes
C. ? 20 minutes
D. ? 17 minutes
Answer: C
Mathematics
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Determine whether the graph represents a function.
A. No B. Yes
Mathematics
Answer the question about the given function.Given the function f(x) = 2x2 + 4x - 7, is the point (-2, -3) on the graph of f?
A. Yes B. No
Mathematics
Simplify.
A. 
B. 63x(x + 7)
C. 
D. 
Mathematics
Solve the equation by completing the square.-x2 + 2x = -1
A. {1, 2}
B. 
C. {-1 ± 
}
D. {1 ± 
}
Mathematics