What is the best resource out there for anyone wanting an answer to a math question? ...

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?

Interest begins accruing the date of the transaction except for auto loans mortgages credit card cash advances credit card purchases

Solve -.016x= -16. need solving this