An important stage in the assessment of fish resources and their management is the relationship between stock and recruitment. In 1954, W. E. Ricker formulated the following model to describe this relationship: R(s)=ase−bs, where R is the recruitment, s is the spawning stock size, a>0 is the recruits-per-spawner at low stock sizes, and b>0 describes how quickly the recruits-per-spawner drop as s increases. For each problem below, express your answer as an exact value, such as 2​,1/3, or e^5 for e⁵, etc.
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