How much will a 64 affect my 87 grade in world history

77%

Explanation:

If you add64+87 to find the average you get 154. Then you need to divide it by two and you get 77%.

answer:

there is an old quote "say what you mean, mean what you say, but don't say it mean." people should be allowed to say what they believe- as long as they sa t in a nice way because eveyrone is different and may have a different input. no ones opinion is wrong- but they should always be understand and nice while also stating their point

explanation: