Solve for the red box

Economical solar energy and energy from fusion have been identified as two of engineering's grand challenges. While work continues on these grand challenges, conservation of energy from non-renewable sources is vital. On a practical level, installing low thermal emissivity windows (low-e windows) on buildings can contribute to energy conservation. Installing low-e windows on a small office building is estimated to cost $8,000. The windows are expected to last 7 years and have no salvage value at that time. The energy savings from the windows are expected to be $2,275 in the 1st year. After the 1st year, the savings are expected to increase by $200 each year due to escalating fossil fuel costs. MARR is 12% per year and annual worth is the preferred measure of economic worth. Part a Are the low-e windows an economically attractive investment? Click here to access the TVM Factor Table Calculator. The annual worth of installing the low-e windows is $ Carry all interim calculations to 5 decimal places and then round your final answer to a whole number. The tolerance is \pm 1. Economical solar energy and energy from fusion have been identified as two of engineering's grand challenges. While work continues on these grand challenges, conservation of energy from non-renewable sources is vital. On a practical level, installing low thermal emissivity windows (low-e windows) on buildings can contribute to energy conservation. Installing low-e windows on a small office building is estimated to cost $8,000. The windows are expected to last 7 years and have no salvage value at that time. The energy savings from the windows are expected to be $2,275 in the 1st year. After the 1 st year, the savings are expected to increase by $200 each year due to escalating fossil fuel costs. MARR is 12% per year and annual worth is the preferred measure of economic worth. Parta Are the low-e windows an economically attractive investment? Click here to access the TVM Factor Table Calculator. The annual worth of installing the low-e windows is $