Please answer this correctly without making mistakes

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?

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²