Caitlin paints with watercolors on a sheet of paper 28 inches wide by 16 inches high. She then places this sheet on a mat so that a uniformly wide strip of the mat shows all around the picture. The perimeter of the mat is 112 inches. How wide is the strip of the mat showing around the picture
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(a) 8 inches
(b) 4 inches
(c) 6 inches
(d) 2 inches
(e) 3 inches
(e) 3 inches
Mathematics
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Sketch the graph of the function.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics
Find the inflection points, if any, of the function.
?
?
A. 
B. 
C. 
D. none
Mathematics
Write interval notation for the graph.
A. (-3, 1] B. (-1, 3] C. [-3, 1) D. [-1, 3)
Mathematics
Decide whether the given number is a solution of the given equation. Is -12 a solution of 12 + x = 0 ?
A. Yes B. No
Mathematics