a 7-year project is expected to provide annual sales of $153,000 with costs of $89,000. the equipment necessary for the project will cost $275,000 and will be depreciated on a straight-line method over the life of the project. you feel that both sales and costs are accurate to /−10 percent. the tax rate is 21 percent. what is the annual operating cash flow for the worst-case scenario? multiple choice $31,634 $68,634 $50,994 $39,692 $23,880