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How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits

Use the quadratic function to predict f(x) if x equals 8. f(x) = 25x2 − 28x + 585

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.