A company is deciding whether or not to produce a new product as part of a $5-$year project. If the company decides to produce this good, the company would set up a manufacturing plant on land it purchased last year for $$50,000.$ If the company decides not to produce the good, it could sell the land now for $$60,000.$

If the company decides to make this new product, it would need to purchase new fixed assets $($plant and equipment$)$ that would cost $$4,000,000.$ The company would depreciate these assets straight line to $$500,000$ over the $5-$year project. However, the company expects to sell these fixed assets for $$600,000$ in $5$ years. The tax rate for the company is $10\%.$

a$.$ If the company decides to produce this product, what is the cost of the project $($that is$,$ what is the cost at time zero on a timeline$)?$

b$.$ If the company decides to produce this product, what is the after$-$tax salvage value of the fixed assets?