Answer:
21
Step-by-step explanation:
The pattern is going up by 3s
150 people.
27 is 18% of 150.
10.5 is 7% of 150.
15 is 10% of 150.
19.5 is 13% of 150.
28.5 is 19% of 150.
49.5 is 33% of 150.
You need to ask the question while you say you have troubles, But what can I help you with?
Oh thats easy. It's a piece of cake. Just use your calculator