An anion with a -2 charge is found in which Group?

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

Why can't my rank go i have 1723 points, but my rank is only at ambitious, which is only 250 points! like, (p. s. i know this isn't related to math, but i just don't know why it's doing this and i would really appreciate if someone could tell me whats going on with this)

If three points are collinear, they are also coplanar