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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Solve the problem.Suppose that y is directly proportional to x and that y = 30 when x = 5. Find the constant of proportionality k. Then, find y when x = 16.
A. k = 6; y = 96
B. k = - 6; y = - 96
C. k = 150; y = 
D. k = 8; y = 128
Mathematics
Perform the indicated operation. Assume that all variables are nonnegative.
- 
A. 13
B. -35
C. -5
D. -5
Mathematics
Evaluate (
).
A. 2 B. 1 C. 0 D. 40,320 E. none of these
Mathematics
Convert the rectangular coordinates to polar coordinates with r>0 and 0??<2?.  figure 1.png)
What will be an ideal response?
Mathematics