[tex]\huge\boxed{471.5}[/tex]
The formula for an arithmetic sequence is as follows:
[tex]a_n=a_1+(n-1)d[/tex]
In this formula, [tex]a_n[/tex] represents the [tex]n[/tex]th term of the sequence and [tex]d[/tex] represents the common difference between each term.
Plug in the known values.
[tex]a_{308}=11+(308-1)1.5[/tex]
Subtract.
[tex]a_{308}=11+307*1.5[/tex]
Multiply.
[tex]a_{308}=11+460.5[/tex]
Add.
[tex]a_{308}=\boxed{471.5}[/tex]
