Sure, let's break down the problem step by step:
1. Initial Establishment of Plants:
- In the first 4 years, the Nazis established 13 plants.
2. Doubling the Number of Plants:
- By the end of the 8th year, the number of plants doubled. So, we need to determine the number after doubling.
3. Calculating the Doubled Number:
- To find the doubled number of plants, simply multiply the initial number by 2.
- Therefore, [tex]\( 13 \times 2 = 26 \)[/tex].
So, by the end of the 8th year, they had 26 plants.
