Using the percentage concept, supposing 520 out of 1000 respondents believe in global warming, 52% of respondents agreed that global warming is occurring.
<h3>What is a percentage?</h3>
The percentage of an amount a over a total amount b is given by a multiplied by 100% and divided by b, that is:

In this problem, we suppose that 520 out of 1000 respondents believe in global warming, hence a = 520, b = 1000, and the percentage is of:

More can be learned about the percentage concept at brainly.com/question/10491646
Answer:
B
Step-by-step explanation:
hope it helps <3333
You look beautiful
Well I know 40+30+20= 90. If that is not what you are looking for then you need to clarify what you are asking.
Answer:
35 I think
Step-by-step explanation: