D. Human population increased significantly in a short period of time
This really subjective on your situations depends on at what age group you're in, but most experts believe the answer is 15 %.
The most popular method in managing your finance is the 50/30/20 rules.
50 % allocated for necessities (such as housings and foods)
30% allocated for lifestyle (such as place to hang out)
20% allocated for financial related matters.
From those 20 % allocation, 15 % is advised for savings and 5% for others financial matters if you're in your 20s
The answer to this question is Bias
When researchers are being biased in their analysis, all of their analysis become really unreliable because it does not fully reflect to the truth.
To make the result of the researchers fully reliable, researchers need to base their analysis solely to the data at hand
You need to add the picture to answer the question
The power of making laws and enforcing them is called jurisdiction
