What does this expression represent?
12f + 24
a: twenty-four more than twelve times a number.
b: twelve time the difference of a number and twelve four.
c: twelve times the sun of a number plus twelve four.
d: twelve- four more than twelve plus a number.

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.