Carbon dating presumes that as long as a plant or animal is alive the proportion of its carbon that is 14C is constant The amount of 14C in an object made from harvested plants like paper will decline exponentially according to the equation A Ae 0 0001213t where A represents the amount of 4C in the object A represents the amount of 14C in living organisms and t is the time in years since the plant was harvested If an archeological artifact has 40 as much 14C as a living organism how old would you predict it to be Round to the nearest year O 16 006 years 5715 years 30 411 years 87 years 7554 years