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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?

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?