At the movie theater , child admission is $5.80 and the adult admission is $9.20. On wednesday , 113 tickets were sold for a sales of $866.20. How many adult tickets were sold that day?

Michael gose to a theme park and rides two different roller coasters that both begin on a raised platform his height while on the first roller coaster measured in feet from the platform height can be modeled by the following graph where t is the number of seconds since the ride began