Which is not a function

Which point is a solution to the inequality shown in this graph (-3,-3)(3,-1)

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?

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.