An airline conducts a survey to determine customer satisfaction
Which of these methods will produce the most representative sample of the
population of airline customers?
A. Airline representatives make phone calls to a random selection of
customers
B. Airline representatives survey all passengers as they arrive at their
destination on a randomly selected day.
C. Airline representatives survey all customers who flew first class in
a given week
D. Airline representatives survey all customers who flew from Dallas
to Chicago

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.

Ineed to know how to write question one in mathematical terms

Pleas its really urgent and i would really appreciate it! what is the value of x? enter your answer in the box. x =