5E please

The cash flow diagram below has an internal rate of return of 35%. What is the value of Y if perpetual service is assumed? (5.3) A drug store is looking into the possibility of installing a 24/7-automated prescription refill system to increase its projected revenues by $20,000 per year over the next 5 years. Annual expenses to maintain the system are expected to be $5,000. The system will cost $50,000 and will have no market value at the end of the 5-year study period. The store's MARR is 20% per year. Use the AW method to evaluate this investment. (5.5) An office supply company has purchased a light duty delivery truck for $15,000. It is anticipated that the purchase of the truck will increase the company's revenue by $10,000 annually, whereas the associated operating expenses are expected to be $3,000 per year. The truck's market value is expected to decrease by $2, 500 each year it is in service. If the company plans to keep the truck for only 2 years, what is the annual worth of this investment? The MARR = 18% per year. (5.5) Anderson County has 35 older-model school buses that will be salvaged for $5,000 each. These buses cost $144,000 per year for fuel and maintenance. Now the county will purchase 35 new school buses for $40,000 each