What is the cumulative frequency for these numbers:
60-119
120-179
180-239
240-299

How do you answer this question? (step by step)

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?

Graph the linear function using the slooe and y intercept