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S takes a product to market, incurring transaction costs of 2 and exchanges it with B, in an arm's length (i.e. in- dependent) transaction at an agreed exchange price of 30. B takes the product to his own entity, incurring transaction costs of 3. Calculate each of the following within the limits of the given data: (a) S's selling price (b) S's net realizable value (c) B's buying price (d) B's historical cost (e) B's current replacement cost (1) Fair value to s before the sale (g) Fair value to B after the sale