Evaluate each expression if a = -2, b=3, and c = 4.2. 1. a – 2b + 3c

2. 2a + (6 + 3)^2

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?