(Solved): 8. Find the sum of the even integers between 367 and 6,222 . Complete the following steps to earn p ...

8. Find the sum of the even integers between 367 and 6,222 . Complete the following steps to earn points. (Note: If you just add or multiply numbers in your calculator, you will get 0 points for your answer.) a. Use the appropriate formula for \( a_{n} \), with values plugged in, to find \( n \). Show the formula and your work. b. Use the appropriate formula for \( S_{n} \), with values plugged in. Show the formula and your work.