A ship embarked on a long voyage. At the start of the voyage, there were 400 ants in the cargo hold of the ship. One week into the voyage, there were 700 ants. Suppose the population of ants is an exponential function of time. (Round your answers to two decimal places.) (a) How long did it take the population to double? weeks H (b) How long did it take the population to triple? weeks U (c) When were there 10,000 ants on board? weeks D (d) There also was an exponentially-growing population of anteaters on board. At the start of the voyage there were 16 anteaters, and the population of anteaters doubled every 2.1 weeks. How long into the voyage were there 200 ants per anteater? (Round your answer to one decimal place.) weeks D