Evaluate the expression shown below and write your answer as a fraction in simplest form 1/9+1/12

Witch represents the inverse of the function f(x)=1/4x-12

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9

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.