rate is $30\%.$ Cash outflows, if any, should be indicated by a minus sign. Do not round intermediate calculations. Round your answers to the nearest dollar.

a$.$ What is the Year$-0$ net cash flow?

$

b$.$ What are the net operating cash flows in Years $1,2,$ and $3?$

Year $1$: $

Year $2$: $

Year $3$: $

c$.$ What is the additional Year $3$ cash flow $($i$.$e$,$ the after$-$tax salvage and the return of working capital$)?$

$

d$.$ If the project's cost of capital is $10\%,$ what is the NPV of the project?

$

Should the machine be purchased?