An advertising agency has found that when it promotes a new product in a certain market of 350,000 people. The number of people x who are aware of the product t days after the advertising campaign is initiated is given by x = 350,000(1-e-0.077t :) a) How many people (to the nearest thousand) are aware after 1 week b) How long (to the nearest day) will it take before 300,000 people are aware of the product?