Question: 2x - 4 + 5x
Simplified: 7x - 4
Answer:
4
Step-by-step explanation:
It is 10 to 1 significant figures
To determine the number of subjects that are needed for the experiments, we multiply the number of independent variables with the number of scores. For example, there are n independent variables then, there are approximately,
number of subjects = 20 x n = 20n