Current Attempt in Progress

Cullumber Auto Repair Company owns a garage and is contemplating purchasing a tire retreading machine. Cullumber projects a net cash inflow from the retreading machine of $$11,000\mathrm{.}00$ annually for $7$ years. It feels it could sell the machine for $$10,000\mathrm{.}00$ when done using it$.$ Cullumber hopes to earn a return of $10\%$ on such investments. What is the net present value if machine costs $$50,000\mathrm{.}00?($For calculation purposes, use $5$ decimal places as displayed in the factor table provided. Round answer to $2$ decimal places, e$.$g$.52\mathrm{.}75.)$

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Net present value $ $$

Should Cullumber purchase the retreading machine if it costs $$50,000\mathrm{.}00?$