Solution

Which Is Bigger Imeth

First name
Imeth
School
Pristine Private School
School's Twitter handle
@PristineSchool
Age
12

It depends on the value of n. In the line graph below, it's shown that for values of n less than 7, n+10 is greater. However, if it is more than 7, 2n+3 is greater. And as shown by the intersection between the two lines, they are equal, as 7+10 = 14+3.
I made the graph by graphing the lines y = x + 10 and y = 2x + 3.