Question #5900008

# Use matrix operations to compute the total profit at each store in January.?

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In January, the Left Coast Bookstore chain sold 700 hardcover books, 1,400 softcover books, and 2,400 plastic books in San Francisco; it sold 400 hardcover, 500 softcover, and 500 plastic books in Los Angeles. Now, hardcover books sell for $30 each, softcover books sell for $10 each, and plastic books sell for $15 each. 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 total profit at each store in January?
SAN FRANSISCO= ???
LOS ANGELES= ???
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