To determine the number of parking spaces needed per townhouse, we can analyze the relationship from the table:
- For every townhouse, there are 3 parking spaces. This means that 3 parking spaces are needed per townhouse.
Thus, the correct response for blank 1 is 3.
For blank 2, the ordered pair that represents this relationship (where the first number is the number of townhouses and the second number is the number of parking spaces) is (1, 3), since when there is 1 townhouse, there are 3 parking spaces needed.
So the answers are:
blank 1: 3
blank 2: (1, 3)