i just read this, and if you want an accurate price, seeing as how the house is 3 dimensional, wouldnt you want to find the surface area? because prod's equation would only find the cost for 1 side of the house, not the whole house. so wouldnt the proper equation be (2a+2b+c)*150=T?
A= side of house
B= side of house (more different)
C= roof
by the way arent houses priced by how many surface blocks there are?