7- If the MARR is 8%, which alternative should be selected? 63 Year X Y 0 0 1 2 3 4 1 2 3 4 - $5000-$5000 - 3000 2000 4000

2000 4000 2000 4000 2000 7- If the minimum attractive rate of return is 14%, which alternative should be selected? 75 Year w x y Z -$1000-$500-$1200-$1500 350 165 420 500 350 165 420 500 350 165 420 500 350 165 420 500