Provide an appropriate response.A proper fraction has the form 
. What is the largest possible number that x can be?
A. 21
B. 20
C. 22
D. 10.5
Answer: B
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Evaluate the determinant by expansion by minors.
A. -11 B. -53 C. 0 D. -36
Determine if the function is even, odd, or neither.g(x) = 
A. Even B. Odd C. Neither
Solve.An express and local train leave Grays Lake at 3 P.M. and head for Chicago 50 miles away. The express travels twice as fast as the local and arrives 1 hour ahead of the local. Find the speed of each train.
A. Express's rate = 50 mph and local's rate = 25 mph. B. Express's rate = 25 mph and local's rate = 12.5 mph. C. Express's rate = 60 mph and local's rate = 30 mph. D. Cannot be determined with information given.
Provide an appropriate response.What is the relationship between the slopes of two parallel lines?
A. One slope is the reciprocal of the other. B. One slope is the negative of the other. C. They are the same. D. There is no general relationship, because the y-intercepts can be different.