A store finds that its sales revenue changes at a rate given by S' (t) = √√tt dollars per day where t is the number of days after an advertising campaign ends and 0 ≤ t≤ 20. Find the total sales for the first two weeks after the campaign ends (t = 0 tot 14.) Round to the nearest cent. = $1329.20 $156.37 $132.92 $248.93