Caydon is out one night shooting pool. He hits the cue ball at the three ball with a velocity of 5 m/s. If the masses of the cue ball and three ball are
equal, what is the velocity of the three ball if the cue ball bounces straight
back with a velocity of 2 m/s when it hits the three ball?

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.