Add.
A. 31
B. 32
C. 21
D. 30
Answer: A
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Find the mode or modes.Last year, nine employees of an electronics company retired. Their ages at retirement are listed below. Find the mode(s).56?60?6457?53?6668?5854
A. 58 B. 56, 60, 64, 57, 53, 66, 68, 58, 54 C. 59.6 D. No mode
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 red sticker.Use the fact that for A = 
, A-1 = 
.
A. $6.50
B. $6.99
C. $6.87
D. $6.79
Solve the problem.A collection agency specializing in collecting past-due commercial invoices charges 
as an application fee plus 
of the amount collected. What is the total charge for collecting 
in 
commercial invoices?
A. $1898 B. $187.5 C. $323 D. $300
Find the center (h, k) and radius r of the circle with the given equation. (x - 10)2 + y2 = 100
A. (h, k) = (0, 10); r = 100 B. (h, k) = (10, 0); r = 10 C. (h, k) = (10, 0); r = 100 D. (h, k) = (0, 10); r = 10