Which of the following expressions is equivalent to 3x^2+6x-24? A. 3(x+2)(x-4) B. 3(x-2)(x+4) C. (x+6)(x-12) D. (x-6)(x+12)
with explanation please

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.