Find the vertices and foci of the hyperbola with equation quantity x plus 5 squared divided by 81 minus the quantity of y minus 3 squared divided by 144 = 1. Vertices: (4, 3), (-14, 3); Foci: (-20, 3), (10, 3) Vertices: (3, 7), (3, -17); Foci: (3, -17), (3, 7) Vertices: (7, 3), (-17, 3); Foci: (-17, 3), (7, 3) Vertices: (3, 4), (3, -14); Foci: (3, -20), (3, 10)

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.