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Clara schumann is buying bagels for her coworkers, she buys a dozen bagels priced at $5.49 a dozen. the bakery's cost for making the bagels is $2.25 per dozen. what is the markup rate based on selling price on a dozen bagels?

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?