A sequence is defined recursively as follows: a(1)=1, and a(n)=a(n-1)+n How do you interpret this recursive rule? Write it down in your own words.
Write down the rule for a(2), a(3), and a(4) and determine their values.

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?