can you help me :

a printing service purchased a system $5$ years ago

automated printing at a cost of $$60,000.$ At the time of purchase, estimated life

of the machine was $7$ years old and its salvage value was $$6,000.$ These

Estimates are still valid. The machine incurs operating costs

annual of $$4,000.$

A new, more efficient machine would reduce operating costs to $$1,000$ per

year, but would require a new investment of $$40,000.$ The useful life of the new

machine is $3$ years old and its salvage value is $$20,000.$ A buyer

is offering $$10,000$ for the current machine.

We also offer to rent the new machine for an annual amount of

$$10,000.$ However, you will have to assume maintenance costs of $$1,000$ per year $($at the end

of year$).$ Rental payments must be made at the beginning of the year. In case of

rental, you can sell the current machine for $$10,000.$

Determine whether it is more economically advantageous to replace this machine,

keep it or rent one. Assume a TRAM of $12\%.$ The tax rate

marginal of the company is $40\%.$ Both machines are goods of the category

$43.$