During the current year, Tony purchased new car wash equipment for use in his service station business. Tony's costs in connection with the new equipment this year were as follows: cost of equipment: 45,000 sales tax on the equipment: 4,000 delivery charges: 600 installation and testing charges: 3,000 expenses of operating the equipment: 2,000 What is Tony's basis in the car wash equipment? a) $54,600 b) $52,600 c) $49,000 d) $49,600