1. Determine the number of botes needed per house:
\frac{70 \text{ botes}}{5 \text{ casas}} = 14 \text{ botes por casa}
2. Calculate the total number of botes needed for 12 houses:
14 \text{ botes por casa} \times 12 \text{ casas} = 168 \text{ botes}
Answer: 168 \text{ botes de pintura}