Im really confused so please explain steps

#1 A firm is considering replacing the existing industrial air conditioning unit. They will pick one of two units. The first, the AC360, costs $26,697.00 to Install, $5,050.00 to operate per year for 7 years at which time it will be sold for $7.110.00. The second, RayCool 8, costs $41,321.00 to Install, $2,079.00 to operate per year for 5 years at which time it will be sold for $9,068.00. The firm's cost of capital is 5.34%. What is the equivalent annual cost of the AC3607 Assume that there are no taxes. Submit Answer format: Currency: Round to: 2 decimal places. #2 A firm is considering replacing the existing industrial air conditioning unit. They will pick one of two units. The first, the AC360, costs $26,580.00 to Install, $5,156.00 to operate per year for 7 years at which time it will be sold for $7,182.00. The second, RayCool 8, costs $41,960.00 to Install $2,187.00 to operate per year for 5 years at which time it will be sold for $8,998.00. The firm's cost of carital is 5.44%. What is the equivalent annual cost of the RayCool87 Assume that there are no taxes. Submit Answer format: Currency: Round to: 2 decimal places