Homework 3.5 Question 15 of 15 (1 point) | Question Attempt: 1 of Unlimited Ayud 2 V 3 5 6 Espanol 7 V 8 9 10 11 12 13 14 15 Caffeine occurs naturally in a variety of food products such as coffee, tea, and chocolate. The kidneys filter the blood and remove caffeine and other drugs through urine. The biological half-life of caffeine is approximately 6 hours. If one cup of coffee has 100 mg of caffeine, then the amount of caffeine C (in mg) remaining after f hours is given by C = 100(2) 1/6 (a) How long will it take for the amount of caffeine to drop below 80 mg? Round to 1 decimal place. (b) Laura has trouble sleeping if she has more than 30 mg of caffeine in her bloodstream. How many hours before going to bed should she stop drinking coffee? Round to 1 decimal place, if necessary. M