There are 720 different ways in which Rosa can align her plants.
Let's say that there are 6 positions in the row (one for each plant).
Now, let's count the number of options for each one of these positions.
The total number of different combinations is given by the product between the numbers of options, we will get:
C = 6! = 6*5*4*3*2*1 = 720
There are 720 different ways in which Rosa can order her 6 plants.
If you want to learn more about combinations, you can read:
https://brainly.com/question/4857356