Please help!! I have a mastery grade for this :/ (click on pic)

Find the value of x for which line a is parallel to line b

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.

6points possible: 3. total attempts: 5 for the data shown, answer the questions. round to 2 decimal places. x 7.3 11.7 21.7 18.8 23.2 20.7 29.7 21.2 10.6 find the mean: find the median: find the standard deviation: