plz help, will give a thumb up

Consider a firm that has invested in a 5-year project. It faces a 40% corporate tax rate and its investment belongs to the CCA class with a 30% depreciation rate. A new "take care of equipment" program implemented by the firm allowed it to increase the salvage value of the equipment by $20,000. What was the effect of this program on NPV if the project's discount rate is 12%? $6,809 $8,106 $9,714 $11,349 Consider a firm that has invested in a 5-year project. It faces a 40% corporate tax rate and its investment belongs to the CCA class with a 30% depreciation rate. By how much the NPV of the project will increase if the firm would be able to negotiate a $20,000 discount on the equipment it bought? Assume that the salvage value of the equipment stays the same. Assume also that the project's discount rate is 12%. $11,349 $14,592 $12,000 $10,714 Consider a firm that has invested in a 5-year project. It faces a 40% corporate tax rate and its investment belongs to the CCA class with a 30% depreciation rate. By how much the NPV of the project will increase if the firm were able to use its inventory more efficiently and reduce the required NWC by $20,000? Assume the project's discount rate is 12%. $8,651 $9,974 $12,000 $9,013