House Construction in the Historic District Poured
Field stone & Combination
Concrete
mortar
Total
0
205
Historically-protected
18
134
Non-historically-
protected
Total
203
339
The houses in the "historic district of a particular town are either historically protected or not.
The above table partially represents these homes and whether they have foundations made from
poured concrete, mortar and field stone, or a combination of both. If only 4.5% of the non-
historically-protected homes have a field stone and mortar foundation, how many homes is this?
Round to the nearest whole number.