The $n^{\text {th }}$ term of a sequence is given by \[ T(n)=8 n+9 \] Work out the $5^{\text {th }}$ term of this sequence.

Step 1 ：Given the formula for the nth term of a sequence: \(T(n) = 8n + 9\)

Step 2 ：Substitute n = 5 to find the 5th term: \(T(5) = 8(5) + 9\)

Step 3 ：Calculate the value: \(T(5) = 40 + 9\)

Step 4 ：\(T(5) = 49\)

Step 5 ：\(\boxed{49}\) is the 5th term of the sequence.