answer: 150500
this should be right, I don't know.
research it though and make sure it makes sense
Sum of All Even Numbers from 200 to 800:
To find the sum of all even numbers from 200 to 800, we can use the formula for the sum of an arithmetic series.
In this case, we need to find the sum of all even numbers from 200 to 800. The first even number in this range is 200 and the last even number is 800. We can calculate the number of terms in this series using the formula:
Substitute values.
Then, we can find the sum using the formula for the sum of an arithmetic series:
Therefore, the sum of all even numbers from 200 to 800 is 150500.
