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a. For a 6-line surplus-share reinsurance treaty with a retained line of $150,000, how much will the reinsurer pay for a $500,000 loss on an insured value of $750,000? b. For a 6-line surplus-share reinsurance treaty with a retained line of $150,000, how much will the reinsurer pay for a $500,000 loss on an insured value of $1,600,000