Provide an appropriate response.If f(x) = 
+ x, then f(-2) =
A. 7.
B. -7.
C. 
-2.
D. 0.
E. 3.
Answer: E
Mathematics
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Fill in the blank with one of the words or phrases listed below. 
A(n) 
is made up of two rays that share the same endpoint. The common end point is called the 
.
A. adjacent; vertex B. adjacent; vertical C. angle; vertex D. angle; vertical
Mathematics
Solve the equation for the indicated variable.5r + 1 = 9s for r
A. 
B. 
s - 1
C. 
s + 1
D. 9s - 
Mathematics
Refer to the figures below to answer the following question.
Which of the figures is a gnomon to Figure C?
A. Figure D B. Figure B C. Figure E D. Figure A E. none of these
Mathematics
Use elimination by substitution to find the solution for the following system.
A. x = 36, y = 4 B. x = 9, y = -1 C. x = -4, y = 36 D. x = 36, y = -4
Mathematics