In 1987, a 30-second superbowl ad cost $40,000. in 2000, a 30-second commercial cost 1,800,000. what was the percent of change in the cost of a commercial?

Your best friend told you that last week scientists disco y that las vegas is responsible for abrupt climate changes. which do you think is best way to research that recent discovery? an encyclopedia usgs internet site a book in the library your best friend’s parents for your ! ❤️