The tonga trench is at an elevation of 35,702 feet below sea level. the south sandwich trench is at an elevation of 23,737 feet below the sea level. the elevation of tonga trench can be expressed as a rational number as feet. the elevation of the south sandwich trench can be expressed as a rational number feet. nextreset

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.