Here's the question you clicked on:
renadwinick
You place a cup of 210oF coffee on a table in a room that is 68oF, and 10 minutes later, it is 200oF. Approximately how long will it be before the coffee is 180oF? Use Newton's law of cooling: 1 hour 35 minutes 15 minutes 45 minutes
i just messaged u the link.. did u get it? it should help :)