The dollar cost of producing x bagels is C(x) = 300+ 0.25x -0.4(1000). Determine the cost of producing 4000 bagels. (Use decimal notation. Give your answer to one decimal place.) C(4000) = $ Estimate the cost of the 4001st bagel. (Use decimal notation. Give your answer to three decimal places.) The estimated cost of the 4001st bagel is $ Find the actual cost of the 4001st bagel. (Use decimal notation. Give your answer to three decimal places.) The actual cost of the 4001st bagel is $