The area of D is given by:

The average value of f over D is given by:
Answer: 80 dollars
Step-by-step explanation:
You can find a percentage with one of two ways.
For hundreds like this, oftentimes it's quicker and more simple to think of it as just 100. The proportion from 100 to 500 is just 5. 16% of 100 is 16. So, multiply 16 * 5. You would get 80.
The second method is you can use 0.16 * 500. It's the more conventional method, and you get 80, like the last method.
I think 1 is the only common factor of both 0.20 and 215 but I'm not 100% certain
Answer:
1.6
Step-by-step explanation:
the number 6 is one place after the decimal so it's where the tenth is, and the number after is 4 or below which in this case is 2 so the number rounds down to 1.6
Answer:
just do the question and you will get the answer.