Answer:
The first is the closest in absolute values.
The second two are vague and the last is approximate.
Answer:
Travelled 18 km, they are 6 km from home.
Explanation:
12/2 (halfway) is 6km. So, 6 + 12 would be 18 km, total amount travelled. The total distance of the trip would be 24 km (12 km out, 12km back) if they travelled 12+6 (18km) then they only have 6 km more to go.
It Increases. I just took a quiz with the same question.
That would make a cation. If it gained one instead, then it would make an anion.
