HELP ASAP
John studies for a test. The amount of time that he studies will affect the score on his next test. Identify the independent variable.
A. The independent variable is where John studies for his test.
B. The independent variable is the number of notes that John took during class.
C. The independent variable is the amount of time that John studies.
D. The independent variable is John's score on the test.

it's A

Step-by-step explanation:

AS the location here for studing or taking notes dosen't make any sense or link his exam grades. for the other options we have :

-NO. of taking notes which is bascially the amt. of time he spends.

-time

-scores.

i believe the correct answer is option 4.principalities were small territories that were run by russian rulers.

which statement correctly defines principalities in northern asia in the 1200s? principalities were small territories that were run by russian rulers.

hope i could ! : )