How are the functions of the brain and lungs different? The brain helps break down the food into smaller pieces, while the lungs reduce the sugar level in the blood.
The brain processes information, while the lungs inflate and deflate to help us breathe.
The brain reduces the sugar level in the blood, while the lungs pass oxygen into the blood.
The brain works with the spinal cord to send and receive messages, while the lungs filter the blood.

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.