An architect designs a division of townhouses. He uses the table to determine the number of parking spaces needed for the residents. Number of Townhouses Number of Parking Spaces

1 3

10 30

100 300

1,000 3,000

The architect knows that this relationship is proportional. So, he needs to offer _[blank 1]_ parking space(s) per townhouse. This can be represented by the ordered pair _[blank 2]_.

Select two answers: one for blank 1 and one for blank 2.