Question 7 (10 points) From the data shown, determine the ESL the equipment assuming MARR of 10%. Years Retained Market Value M&O Cost o $30,000 $24,000 -$49,000 $20,000 $50,000 $15,000 $53,000 4 $10,000 -$55,000 O ESL = 4 years O ESL = 2 years O ESL = 3 years O ESL = 1 year