Solve the problem.A bookstore is having a sale. All books included in the sale have a colored sticker on them to indicate the sale price. There are green stickers, red stickers, and orange stickers. Bob, Sue, and Fred each make purchases of books that are on sale. Each row of the table gives information about the numbers of book purchases and the total cost of the purchase (before taxes).
Use this information to set up a matrix equation of the form 
which can be solved to determine the price for each type of sale book. Solve this matrix equation to find the price of a
book with a green sticker.Use the fact that for A = 
, A-1 = 
.
A. $4.96
B. $4.91
C. $4.89
D. $4.99
Answer: A
Mathematics
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Sketch D and g(D) from the description of D and change of variables 
x = u cos v, y = u sin v where D is the rectangle 1 ? u ? 2, 0 ? v ? 
?
A.
 ? |  |
B. None of these.
C.
 ? |  |
D.
 ? |  |
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Provide an appropriate response.How are the graphs of 
and 
related to the graph of 
In general, how is the graph of r = f(? - ?) related to the graph of 
What will be an ideal response?
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Find the greatest common factor of the numbers in the group.240, 10,000, 22,500
A. 50 B. 20 C. 30 D. 40
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Solve the equation.
+ 
= 4
A. {0}
B. {
, -2}
C. {-2}
D. {2, -2}
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