Text Problem 31-10 Question Help The following table gives hypothetical annual total costs and total benefits of maintaining alternative populations of Asian elephants Calculate the marginal costs of maintaining alternative elephant populations in the table below. (Enter numeric responses using integers.) Calculate the marginal benefits of maintaining alternative elephant populations in the table below. Population of Asian Elephants Marginal Benefit Total Cost ($ Marginal Cost Total Benefit ($ millions) millions) 40 190 330 7,500 15.000 22,500 30.000 37,500 45,000 460 580 790