Suppose that a Country Club is considering what price to charge for its senior citizens. They know that if they charge a price of $75 then 100 senior citizens will join and if they charge a price of $85 then 80 senior citizens will join. What is the absolute value of the price elasticity of demand for senior citizens at this Country Club?

(Provide answer to the 2^nddecimal point)

This implies that golf is(elastic/unit elastic/inelastic) for senior citizens at this Country Club.