Plot each set of points. Which set represents equivalent ratios?
(3, 1), (4,3), (6, 7)
O (2, 1), (6,3), (10,5)
O (1, 2), (25), (5,8)
O (1,2), (2, 4), (3,5)

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.