1 converts written data into sound waves. 2  converts the sound waves from a voice into a digital signal. 3  converts letters from the keyboard into digital format. 4  converts digital sound waves into analog sound waves.
Travel agencies make their money in a variety of ways. The products agents sell have built-in fees that result in a profit for the agency. The amount of the fees and the ways in which they are earned and distributed differ by the type of product sold and the suppliers who provide that product to the agency.
Acme Advertiser makes $10 profit from each sale. If they pay you a $10 CPM, you make $80 from all four episode, and theyâve earned a profit of $120 after their cost of $80 to get twenty new customers. But if your audience is more engaged and you get 5% (which is actually very high) to take action, then thatâs 100 new customers for Acme Advertiser.