A chemical company is considering buying a new production equipment. The following models are identified as viable candidates from the technical perspectives. The company's MARR is $11\%.$ The estimated cash flows for each alternative are below. Suppose the cotermination assumption is made.

Please round all your answers to the nearest integer.

Machine A:

Capital Investment: $$22,000$

Useful Life: $9$ years

Market Value at the End of Life: $$8,000$

Annual Revenues: $$99,000$

Annual Expenses: $$77,000$

Machine B:

Capital Investment: $$36,000$

Useful Life: $13$ years

Market Value at the End of Life: $$8,000$

Annual Revenues: $$162,000$

Annual Expenses: $$126,000$

Machine C:

Capital Investment: $$49,000$

Useful Life: $7$ years

Market Value at the End of Life: $$2,000$

Annual Revenues: $$220,500$

Annual Expenses: $$171,500$

$1)$ What is the FW of Machine A$?$

$2)$ What is the FW of Machine B$?$

$3)$ What is the FW of Machine C

$4)$ What is the difference between the FW of the best and the worst alternatives?