Help!!! (no links please) the amount of money collected after washing X cars at a car wash in asking for donations is represented by the function F(x) = 9x+ 20. If the car wash collected a total of $200, which of the following sets is the domain of the funcion in the context of the scenario

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.