Hello, can you please answer this question which is related to engineering economic?

Calculate the total capital cost and the annual worth for the following cash flow diagram (the time is infinity) 0 2 4 6 8 10 12 14 20 26 Year Infinity $2000 $3000 + $1500 $1500 $50,000 Only one payment $1500 Cost repeated every 7 years i = 5% per year $90,000 Calculate the total capital cost and the annual worth for the following cash flow diagram (the time is infinity) 0 2 4 6 8 10 12 14 20 26 Year Infinity $2000 $3000 + $1500 $1500 $50,000 Only one payment $1500 Cost repeated every 7 years i = 5% per year $90,000