Some synonyms for "A lot" are lots,heaps,mass,collection
Answer:
She seemed to understand the problem completely.
Explanation:
The infinitive 'to understand' is not split by any descriptors.
So you're asking questions but who are these people? Do you have a passage reading or something? I dont think anybody can help without the information.
I believe the dependent variable in this experiment is the time for salt to dissolve since it <u>depends</u> on the speed of stirring (independent variable).
Therefore, the answer is:
Time for salt to dissolve
Hope this helps! :D