Find any restricted values for the given rational expression.
A. x = 7, x = -7
B. none
C. x = -4, x = -10
D. x = 4, x = -10
Answer: C
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Which of the following is not equivalent to:? x - 5 = –12
A. ?x = –17 B. ?x = –7 C. ?x + 1 = –6 D. ?x - 9 = –16 E. ?x - 7 = –14 F. ?x + 5 = –2
Evaluate or simplify the given expression.sin (tan-1 x)
A. 
B. 
C. 
D. 
Solve the problem.The charges for renting a moving van are $65 for the first 40 miles and $5 for each additional mile. Assume that a fraction of a mile is rounded up. (i) Determine the cost of driving the van 84 miles. (ii) Find a symbolic representation for a function f that computes the cost of driving the van x miles, where 
(Hint: express f as a piecewise-constant function.)
A. $285; f(x) = 
B. $5680; f(x) = 
C. $685; f(x) = 
D. $685; f(x) = 
Add.
+ 
A. 
B. 
C. 
D. 