Chris Co. produces surfboards. A customer has offered Chris Co. $400 per unit for 100 units. To fill the order, Chris would incur unit-level costs of $350 per unit and batch-level costs of $5,500. Chris Co. also incurred $70,000 of product-level costs to design the board and $10,000 of facility-level costs. Calculate the amount of differential cost.

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none of the above. although a banana can be turned into a liquid

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i havent taken the psat, but i have the sat, make sure to bring some snacks, because youre in there forever, 2 sharp number two pencils, an sat approved calculator, and maybe a jacket.   your phone and any books will be taken up, so don't try to bring them(but they will be given back at the end of the testing).   good luck!   i hope you do well!