A manufacturer Of stereo speakers; makes two kinds of speakers_ an economy model which sells for SS0 and deluxe model which sells for $200. The deluxe model uses woofer and 2 tweeters. The economy uses woofer and twecter: The manufacturer currently has 20 woofers and 45 tweeters in inventory. Set-up the problem to maximize income from the sale, use for economy and y for deluxe.