Answer:
A Chart or a graph
Explanation:
A map and a photograph do not tell you the percentage of something and a timeline tells you about a year something happened or a number but a chart or a graph can tell you the percentage of something.
the decade just started...
body language is a typical part of our life
he wants to give his son The world
So teachers can see how much you've exercised and practiced/grown over that time period.
