The interest rate is 10%, and all cash flows may be treated as end-of-year cash flows. If we assume that equivalent annual cost is the value of the constant annuity equal to the total cost of a project, what is the equivalent annual cost of this machine (select the closest answer, if exists) 7-3. (A) $21,000 (B) $21,500 (C) $23,000 (D) $26,500 (E) Not possible to determine with the given information The interest rate is 10%, and all cash flows may be treated as end-of-year cash flows. If we assume that equivalent annual cost is the value of the constant annuity equal to the total cost of a project, what is the equivalent annual cost of this machine (select the closest answer, if exists) 7-3. (A) $21,000 (B) $21,500 (C) $23,000 (D) $26,500 (E) Not possible to determine with the given information