In January, the Left Coast Bookstore chain sold 900 hardcover books, 1,200 softcover books, and 1,600 plastic books in San Francisco; it sold 600 hardcover, 500 softcover, and 700 plastic books in Los Angeles. Hardcover books sell for $34 each, softcover books sell for $8 each, and plastic books sell for $14 each.
HardSoftPlasticSan Francisco9001,2001,600Los Angeles600500700?
Suppose that each hardcover book costs the stores $10, each softcover book costs $5, and each plastic book costs $10.Use matrix operations to compute the the total profit at each store in January.Please enter your answer as a 
column matrix in the following form:
?
What will be an ideal response?
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cos 
+ sin 
sin 
A. 
B. 
C. 
D. - 1
Solve by using the square root property.(x + 4)2 = 14
A. x = -4 ± 
B. x = ± 
C. x = 4 ± 
D. x = 10
Write the following as a rate in lowest terms.141 miles on 24 gallons
A. 
B. 
C. 
D. 
Use a calculator to approximate the root. Round to three decimal places. Check that the answer is reasonable.
A. 3.253 B. 3.267 C. 3.285 D. 3.275