Score: 0 of 1 pt 4 of 14 (8 complete) HW Score: 50%. 7 of 14 pts Problem 4-88 (algorithmic) Question Help A small company heats its building and spends $8,500 per year on natural gas for this purpose. Cost increases of natural gas are expected to be 9% per year starting one year from now (ie, the first cash flow is $9,265 at EOY one). Their maintenance on the gas furnace is $350 per year, and this expense is expected to increase by 12% per year starting one year from now (le, the first cash flow for this expense is $392.00 at the EOY one). If the planning horizon is 15 years, what is the total annual equivalent expense for operating and maintaining the furnace? The interest rate is 15% per year. Click the icon to view the interest and annuity table for discrete compounding when i=9% per year. Click the icon to view the interest and annuity table for discrete compounding when i = 12% per year. Click the icon to view the interest and annuity table for discrete compounding when i= 15% per year. The total annual equivalent expense for operating and maintaining the furnace is thousands. (Round to two decimal places.)