Marshall Corp. is considering a new project whose data are shown below. The equipment that would

be used has a $4-$year tax life, would be depreciated by the straight$-$line method over its $4-$year life, and

would have a salvage value of $$15,000.$ An increase in net working capital of $$10,000$ would be required.

Revenues and other operating costs are expected to be constant over the project's $4-$year life.

Risk$-$adjusted WACC $10\mathrm{.}0\%$

Net investment cost $($depreciable basis$)$ $$100,000$

Project$$s life $4$ years

Straight$-$line depreciation

Sales revenues, each year $$70,000$

Operating costs $($excl$.$ depreciation$),$ each year $$30,000$

Tax rate $25\mathrm{.}0\%$

a$)$ What is the project's NPV$?$

b$)$ What is the project IRR