You spend $300 to start and costs $20 for each dog house
# of dog houses
1
2.
3
4
5
6
7
Total cost to build
![You spend 300 to start and costs 20 for each dog house of dog houses 1 2 3 4 5 6 7 Total cost to build class=](https://us-static.z-dn.net/files/d2f/3cc26920ef467f96f660de2b07e61417.png)