After the end of an advertising campaign the daily sales of a product fell rapidly with daily sales given by S 3900e 0 12x dollars where x is the number of days from the end of the campaign a What were daily sales when the campaign ended b How many days passed after the campaign ended before daily sales were below half of what they were at the end of the campaign a The daily sales when the campaign ended were Simplify your answer Round to the nearest cent as needed ACCES