Ahiker in africa discovers a skull that contains 79% of its original amount of c- 14. . -kt z n = noekt no = inital amount of c-14 (at time n = amount of c-14 at time t k = 0.0001 t = time, in years
Your car's gasoline tank holds 18 gallons of gasoline. on a trip in canada, the tank is one-quarter full. you want to fill the tank. how many liters of gasoline are needed to fill the tank