Solve the problem.One number is 3 less than a second number. Twice the second number is 18 more than 4 times the first. Find the two numbers.
A. -7 and -4
B. -6 and -3
C. 3 and 6
D. -5 and -2
Answer: B
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Find the volume of the solid generated by revolving the shaded region about the given axis.About the y-axis
A. 28 - 7?
B. 14? - 
?2
C. 7? + 7?2
D. 28? - 7?2
Find the domain and the range of the relation.
A. domain: (-?, ?) range: [-2, 2] B. domain: [-2, 2] range: (?, -?) C. domain: (?, -?) range: [-2, 2] D. domain: [-2, 2] range: (-?, ?)
Graph.f(x) = 
x
A. 
B. 
C. 
D. 
Solve the problem.Ten students in a graduate program were randomly selected. Their grade point averages (GPAs) when they entered the program were between 3.5 and 4.0. The following data were obtained regarding their GPAs on entering the program versus their current GPAs. Use the equation of the least squares line to predict the current GPA of a student whose entering GPA is 3.0. Entering GPA (x) Current GPA(y) 3.53.63.83.73.63.93.63.63.53.93.93.84.03.73.93.93.53.83.74.0
A. 3.38 B. 3.27 C. 3.76 D. 3.56