Is it wrong to write 5885 without a comma? In my test, I put it like that, and I know the answer is correct, but the online test told me I was wrong. My friends say that they put in 5,885 with the comma, so maybe that's why I was wrong. However, my teacher never mentioned that it was required to put in a comma, and my answer is correct. Was it wrong of me not to write a comma? Am I the one at fault?

No, the comma is rquired, but you had no way of knowing that. Just, a mistake to learn from, right?

So, i say it's not your fault.

the figures below are made out of circles, semicircles, quarter … find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations). remember that we'll also have to cut whatever areas we get in half, since we're only dealing im pretty sure that is the right answer

step-by-step explanation: