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1. EncryptCo wants to replace its 3-D printer and is currently evaluating two models. The information on the models is shown in the table below. EncryptCo's MARR is 8%. First Cost Annual Savings Annual Maintenance Cost Service Life Salvage Value 3A5Y $680 $245 $50 4 years $100 32i7e $1100 $440 $65 6 years $250 (a) Use the present worth method to determine which printer EncryptCo should choose. (4 marks) (b) Use the annual worth method to determine which printer EncryptCo should choose. (4 marks) (c) Calculate the payback period of each project. (4 marks) (d) Calculate the discounted payback period of each project using Excel. Copy the Excel output into your assignment. (4 marks)