Answer:
price of new heating system is = $53, 600
Explanation:
Given data:
Cost of new heating system is $52000
trade in of fro old machine is $2200
so company paid  = 52000 - 2200 = $49800
old machine value  = 46400 - 42600 = $ 3800
Book value for old machine is 3800 but in trade in it sold for 2200, therefore loss is = 3800 - 2200 = 1600
price of new heating system is = 52000 Â + 1600 = $53, 600