The factor being tested is the variable. There are two types of variables, independent and dependent. The independent variable is the factor being changed by the scientist or the person controlling the experiment. The dependent variable is the thing that gets changed due to the changing of the independent variable. The dependent variable cannot be changed physically by the person doing the experiment.
Answer:
C. 30 -40
Explanation:
90% edge
Hope this helps! have a wonderful day
I also think it should be B
The answer is B . Hope this helps
Im not sure but if there was a graph maybe
