Your using an email marketing service. they charge a setup fee of $200 plus $0.25 per email sent. how much a 5000 email will cost?

Rob is investigating the effects of font size on the number of words that fit on a page. he changes the font size on an essay and records the number of words on one page of the essay. the table shows his data. which equation represents the approximate line of best fit for data, where x represents font size and y represents the number of words on one page?