divide each coat by the square footage. then you will get price per foot. this will tell you that the lowest price per square foot is the best deal.
[tex] \frac{350000}{1400} = 250[/tex]
keep going for each 316.67 for house b
270 for c
185.19 for d
213.3 for e.
so house d is the best value for price per sq ft.