How many year will it take for animal to face extinction and comment on validity of this exponential model

9.C.39 Assigned Media Question Help Suppose that poaching reduces the population of an endangered animal by 4% per year. Further suppose that when the population of this animal falls below 70, its extinction is inevitable (owing to the lack of reproductive options without severe in-breeding). If the current population of the animal is 1400, when will it face extinction? Comment on the validity of this exponential model. It will take about years for the animal to face extinction. (Do not round until the final answer. Then round to the nearest whole number as needed.)