Below are four cases that you will have to solve using Excel spreadsheets. 1st case The company COMERCIAL SA has two investment alternatives that present the following information: PROJECT Initial investment Cash flows Year 2 cash Year 3 cash year 1 flows flows A $25,000 $7,000 $15,000 $18,000 B $22,000 $12,000 $8,000 $12,000 The discount rate for the project will be 10% and the MARR will be 20%. It is requested 1. Determine the internal rate of return. 2. Determine the present value. 3. Determine the recovery period. 4. Define which is the most viable project.