2. Tickets for a concert have been in incredibly high demand, and as the date for the concert draws closer, the price of
tickets increases exponentially. The cost of a pair of concert
tickets was $80 yesterday, and today it is $90. Assume that
each day's percent increase from the day before is the same.
a. What is the percent of increase or decrease?

Three friends went on a road trip from phoenix, az, to san diego, ca. mark drove 50 percent of the distance. jason drove 1/8 of the distance. andy drove the remainder of the distance. 1. andy thinks he drove 1/4 of the distance from phoenix, az, to san diego, ca. is andy correct? 2. the distance from phoenix, az, to san diego, ca, is 360 miles. how many miles did each person drive? 3. solve the problem. what is the answer in total?