Answer: C. aspirin; headaches
Explanation:
The variables in an experiment are either dependent or independent. An independent variable is the change that is introduced to test the hypothesis. A dependent variable on the other hand is the one being monitored or measured due to the introduction of other variables.
Here Headaches are the dependent variables as the experiment is to monitor whether the introduction of aspirin, the independent variable, takes headaches away.
I believe the answer is: she visualised her success
Visualising success is one of psychological technique that is being done by imagining ourself in a situation when we manage to accomplish our goals. This activity could bring positive emotion in our lives, reduce anxiety, and increase our motivation in pursuing our goal.
Because mesopotamia had a lot of empires
A the treasure. The treasure keeps track of all the takes