a$.$ Project A costs $$8,000$ and will generate annual after$-$tax net cash inflows of $$3,250$ for $5$ years. What is the payback period for this

investment under the assumption that the cash inflows occur evenly throughout the year? $($Round your answer to $2$ decimal places.$)$

b$.$ Project B costs $$8,000$ and will generate after$-$tax cash inflows of $$1,250$ in year $1,$$$1,950$ in year $2,$$$3,400$ in year $3,$ $$2,950$ in year

$4,$ and $$3,400$ in year $5.$ What is the payback period $($in years$)$ for this investment assuming that the cash inflows occur evenly

throughout the year? $($Round your answer to $2$ decimal places.$)$

c$.$ Project $C$ costs $$8,000$ and will generate net cash inflows of $$3,750$ before taxes for $5$ years. The firm uses straight$-$line depreciation

with no salvage value and is subject to a $20\%$ tax rate. What is the payback period under the assumption that all cash inflows occur

evenly throughout the year? $($Round your answer to $2$ decimal places.$)$

d$.$ Project $D$ costs $$8,000$ and will generate sales of $$4,900$ each year for $5$ years. The cash expenditures will be $$1,950$ per year. The

firm uses straight$-$line depreciation with an estimated salvage value of $$500$ and has a tax rate of $20\%.$

$(1)$ What is the accounting $($book$)$ rate of return based on the original investment? $($Round your answer to $2$ decimal places.$)$

$(2)$ What is the book rate of return based on the average book value? $($Round your answer to $2$ decimal places.$)$

Use the built$-$in NPV function in Excel to calculate the amounts for projects a through d$.($Round your answers to the nearest whole

dollar amount.$)$

e$1.$ What is the NPV of project A$?$ Assume that the firm requires a minimum after$-$tax return of $7\%$ on investment.

e$2.$ What is the NPV of project B$?$ Assume that the firm requires a minimum after$-$tax return of $7\%$ on investment.

e$3.$ What is the NPV of project C$?$ Assume that the firm requires a minimum after$-$tax return of $7\%$ on investment.

e$4.$ What is the NPV of project D$?$ Assume that the firm requires a minimum after$-$tax return of $7\%$ on investment.