Please some one help I am so bad at math please and I just trying to pass please

What is the missing step in this proof ?

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

The map shows the location of the airport and a warehouse in a city. though not displayed on the map, there is also a factory 112 miles due north of the warehouse.a truck traveled from the warehouse to the airport and then to the factory. what is the total number of miles the truck traveled?