How do you draw a rainfall graph using a scal of 1cm to 20mm

For the sequence [tex]a_{n} = 2n/(n+1)[/tex], what is the value of [tex]a_{10}[/tex]

Point m is located at (-4, -6). what is located 4 units from point m? ( its on a coordinate plane by the way. )

In which month was the peak, the largest deposit, made? january june july august