Farmers wishing to avoid the use of purchased seeds are increasingly concerned about inadvertently growing hybrid plants as a result of pollen drifting from nearby farms Assuming that these farmers raise their own seeds the fractional portion of their crop that remains free on hybrid plants t years later can be approximated by P t 0 98 a Using this model predict the fractional portion of the crop that will be free of hybrid plants 5 yr after a neighboring farm begins to use purchased seeds b Find P 5 and explain its meaning d When will half of the crop be hybrid plants a After 5 yr of the crop will be free of hybrid plants Round to the nearest integer as needed