Perform the indicated operations. Simplify the result, if possible.
+ 
A. 
B. 4x + 15
C. 
D. 
Answer: C
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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 an orange sticker.Use the fact that for A = 
, A-1 = 
.
A. $5.20
B. $5.78
C. $4.95
D. $5.31
Add. Simplify, if possible.
+ 
A. 
B. 
C. 
D. 
Find the amount.What number is 24% of 6?
A. 0.04 B. 2.5 C. 1.44 D. 25
Use the differential to approximate the quantity to four decimal places.ln 1.03
A. 0.0296 B. -0.0300 C. -0.0305 D. 0.0300