Nadia built a robot to filter air and water efficiently. she expects the robot to filter more than 343 L of air and water while using less than 49 Joules of energy 12A + 8W is greater than 343 represents the number of minutes the robot filters air A and water W to filter more than 343 L of air and water 3A + 4W is less than 49 represents the number of minutes the robot filters air and water while using less than 49 Joules of energy. does a robot meet both of nadias expectations by filtering air for 20 minutes and filter water for 15 minutes

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.