Each table below contains some points on a particular graph Decide whether each table shows a set of points that might be on the graph of a function or cannot be on the graph of function.

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?