Exponential Growth/Decay Word Problems
I have a few word problems I'm working on, a bit confused. If any help is given, I'd appreciate it. :)
7. To determine whether a pancreas is functioning normally, a tracer dye is injected. A normally functioning pancreas secrets 4% of the dye each minute. A doctor injects 0.50g of the dye. Twenty minutes later, 0.35g remain. If the pancreas were functioning normally, how much dye should remain?
I'll post the others later if I can't work through them.