The table shows data gathered by an environmental agency about the decreasing depth of a lake during the first few months of a drought.

time (weeks)

lake depth (feet)

0 346.0
2 344.8
5 343.0
7 341.8
10 340.0
12 338.8
the lake's depth after four weeks will be

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.