Which expression results in a sum or difference of six and thirteen fifty fifths? three and one fifth plus three and two elevenths
four and one fifths plus two and four elevenths
eight and ten elevenths minus two and three fifths
seven and seven elevenths minus one and two fifths

Paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each? 1. define a variable for the situation. 2. write an inequality that represents her profit. note: revenue is money coming in. cost is money going out. profit is the difference between the revenue and the cost. in other words: revenue - costs profit 3.using words, describe how many windows she must sell to have a profit of at least $48,000.