Hey can someone please help me answer these 2 finance questions? I'm desperate thanks lol

Question 9 10 Points Save Answer The aftertax cost of debt is a component of a rm's cost of capital. It is best to use the yieldtomaturity of the dept ralner man the coupon rate in calculating the aftertax cost of debt. Question 10 10 Points Save Answer Which of the following items should be included in the calculation of incremental aftertax free cash ows for a projecu C] Money that has already been spent on a marketing survey regardless of whether you do or do not go fonrvard with the project. C] An anticipated increase in sales of a related product that is likely to be used along with the product produced by your new project. An example might be cell phone cases and cell phones. C] A charge for using surplus warehouse space on your rm's property that is empty and unlikely to be used for any other purpose. C] An increase in inventories necessary to support your new project. C] The interest expense ofa bank loan that is going to be used to nance the increased working capital needed for the project. C] Aftertax salvage value of an old piece of equipment that is going to be replaced if your rm takes on the new project. C] Depreciation for the new equipment that will be purchased if your rm takes on the new project. C] A portion of your CEO's salary as he or she will have to devote some of their time to overseeing the implementation of the new project