bis Save response Question 6 of 11 Question 6 8 points Save Arome A. AED 88,715 The operation and maintenance costs of a factory is estimated to be AED 8,000 for the first 4 years, and expected to increase by AED 1,250 per year thereafter. Using an interest rate of 7% and study period of 12 years, select the closest correct answers for the below questions from the answer's options provided below: What is the present worth of base amount? : What is the present worth of gradient amount? B. AED 87,153 How much should be set aside now to pay for the maintenance cost? C. AED 23,611 What is the equivalent annual cost for the overall maintenance? E. AED 72,614 D.AED 10.972 F. AED 20,213 G.AED 63.5421 Question 6 of 11 Moving to another question will save this response