Which expression is equivalent to the distance between –13 and –4 on a number line? Select all that apply. A. |–13 + (–4)|
B. |–13 – (–4)|
C. |–13 – 4|
D. |–4 + (–13)|
E. |–4 – (–13)|

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.