Mathematics

Karly Baxter

5 November, 17:30

Amelia is starting a new exercise routine. On the first day, she will do 8 sit-ups. On the second day, she will do 12 sit-ups. On the third day, she will do 16 sit-ups. On the fourth day, she will do 20 sit-ups. Write an explicit formula for the sequence of the number of sit-ups Amelia will do.