I rebuilt the shower into a bathtub and tiled the walls and ceiling with 3x6 subway tiles using Custom's FlexBond mortar and Fusion Pro grout. According to Custom, both of these products are adequate for bathroom use except for a shower floor.
The 2016 cost of production estimates for corn, soybeans, and wheat show costs nearly the same as those forecast for 2015. To be specific the budgeted costs range from $8.48 (corn) to $5.00 per acre (wheat) higher than 2015.
The marginal cost of production measures the change in total cost of a good that arises from producing one additional unit of that good. The marginal cost is calculated by dividing the change in the total cost by the change in quantity. Using calculus, the marginal cost is calculated by taking the first derivative of the total cost function with respect to the quantity: MC = dTC/dQ.