Your company, Kitchen Works, is employing the SDLC for its new information system. The company is currently performing a number of feasibility studies, including the economic feasibility study. A draft of the economic feasibility study has been presented to you for your review. You have been charged with determining whether only escapable costs have been used, the present value of cash flows is accurate, the one-time and recurring costs are correct, realistic useful lives have been used, and the intangible benefits listed in the study are reasonable. Although you are a member of the development team because of your strong accounting background, you have questions about whether some costs are escapable, the interest rates used to perform present value analysis, and the estimated useful lives that have been used. How might you resolve your questions?