$($Solving a comprehensive problem$)$ Use the end$-$of$-$year stock price data in the popup window, $,$ to answer the following questions for the Harris and Pinwheel companies.

a$.$ Compute the annual rates of return for each time period and for both firms.

c$.$ Compute a three$-$year rate of return spanning the entire period $($i$.$e$.,$ using the ending price for period $1$ and ending price for period $4).$

d$.$ Since the rate of return calculated in part $c$ is a three$-$year rate of return, convert it to an annual rate of return by using the following equation:

$([$ Three$-$Year $],[$ Rate $of$ Return $])=(1+[$ Annual Rate $],[of$ Return $]{)}^3$

return $($arithmetic or geometric$)$ should you use? Why?

a$.$ Enter the annual rate of return for each year for Harris in the table below. $($Round to two decimal places.$)$

$\backslash$table$[[$Time$,\backslash$table$[[$Value of$],[$Harris Stock$]],\backslash$table$[[$Annual Rate$],[$of Return$]],\backslash$table$[[$Value of$],[$Pinwheel Stock$]],\backslash$table$[[$Annual Rate$],[$of Return$]]],[1,$$$10,,$$$21,],[2,7,\%,28,],[3,14,\%,24,],[4,16,\%,28,]]$

Enter the annual rate of return for each year for Pinwheel in the table below. $($Round to two decimal places.$)$

$\backslash$table$[[$Time$,\backslash$table$[[$Value of$],[$Harris Stock$]],\backslash$table$[[$Annual Rate$],[$of Return$]],\backslash$table$[[$Value of$],[$Pinwheel Stock$]],\backslash$table$[[$Annual Rate$],[$of Return$]]],[1,$$$10,,$$$21,],[2,7,-30\mathrm{.}00\%,35,\%$