The Super Soup franchise had 23 stores in 2018. In 2019, the business opened 5 new stores, but closed the 2 that performed the worst. And in 2020, they opened 10 new stores, closing the 6 worst-performing. How many stores did Super Soup have at the end of 2020?
The number of stores opened is 5+10=15.
The number closed is 2+6=8.
There were 23+15-8=30 stores open.