Answer:
1.The Stiles Family
2. The Melendez Family
Explanation:
1. The stiles family uses 745 kw/h per person compared to barton which uses 355 kw/h and Melendez which uses 390 kw/h
2. The melendez family uses 875 gal per person compared to Barton which uses 1,066 gal and Stiles which uses 1,250 gal