HOW DO YOU GET THE ANSWER FOR NUMBER 2

One of the inventors of integrated circuits observed that the number of transistors that fit on an integrated circuit will double every 24 months. what type of relationship most appropriately models this situation?

Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83