I need help finding z and y pls

In which of the situations can information about tyler be represented by the expression r+3 when r represents information about ray? check all that apply.

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?

Find the missing dimension extra points