Q[d]. Next yeаr а cоmpаny is rоlling оut several new products for its collegiate market. The current production plan forecasts that [r] lawn sign holders will be needed for next year. The annual warehouse expense for a single holder is $[i] per part. The holder can be ordered in batch quantities, and the setup cost associated with each batch is $[s] per batch. What is the optimal lot size that will minimize the total annual cost associated with purchasing lawn sign holders? (Round to zero decimal places.)