Simplify.
A. 
B. 
C. 
D. 
Answer: C
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Answer the question or solve the problem.The scores of a math test for five students were posted on the bulletin board. The students' names are Rob, Penny, Jake, John and Tom. Rob and Tom scored the same number of points. Penny did not get the highest score. John's score was 5 points lower than Jake's. The scores were 67, 51, 86, 51 and 81. Which student received what score?
A. Rob and Jake 51, Penny 81, Tom 67, John 86 B. Rob and Jake 51, John 67, Jake 81, Penny 86 C. Rob and Tom 51, Penny 81, Jake 67, John 86 D. Rob and Tom 51, Penny 67, Jake 86, John 81
Factor the polynomial completely. If the polynomial cannot be factored, say it is prime.x2 - x - 63
A. (x + 7)(x - 9) B. prime C. (x - 63)(x + 1) D. (x - 7)(x + 9)
Find the domain of the logarithmic function.f(x) = ln (6 - x)
A. (-?, 6) B. (-?, 6) or (6, ?) C. (-?, 0) D. (-6, ?)
Find the perimeter or area of the figure as indicated. Express your answer in simplified radical form.Find the perimeter of the rectangle. 
cm
A. 30 cm
B. 10
cm
C. 5
cm
D. 10
cm