Question

I need help with this. It’s for 15 pts. Just do 4-6 not the other ones. And also do it step by step. Please.

Answer 1

4 is 6th graders

5 is 7th graders

6 is Yes because half of
.45 is 22.5 and .45 subtract .18 is .27 so that means its about close to the half point