Nash Unlimited is considering purchasing an additional delivery truck that will have a seven$-$

year useful life. The new truck will cost $$37,000.$ Cost savings with this truck are expected to

be $$11,100$ for the first two years, $$7,600$ for the following two years, and $$4,200$ for the last

three years of the truck's useful life.

What is the payback period for this project? $($Round answer to $2$ decimal places, e$.$g$.52\mathrm{.}75.)$

Payback period

years

What is the discounted payback period for this project with a discount rate of $9$ percent?

$($Round intermediate calculations to $5$ decimal places, e$.$g$.0\mathrm{.}42355.$ Round answer to $2$ decimal

places, e$.$g$.52\mathrm{.}75.)$

Discounted payback period