Answer:
24
Step-by-step explanation:
The number line should read 18, 24, 30, 36, 42. There is a spacing of 6 units between each tick mark.
Good luck.
Hope this helps!
There's no picture or anything about the shape in the question D: if you're able to explain in the comment I'll help you :D
The experimental units in this experiment are the 10 plants in group 2.
The experimental unit is a term used in science to refer to an individual or group of objects that are initially equivalent and then undergo experimental processes.
According to the above, the experimental unit of this experiment is the group 2 of plants because these are the plants that are going to be put into experimentation with a new fertilizer.
Then, the answer is D, because it refers to the experimental unit corresponding to this experiment.
Learn more in: brainly.com/question/17034824
