Answer
See below.
Work Step by Step
For $n=1:a_1=9$
For $n=2:a_2=3a_1+5=3\cdot9+5=32$
For $n=3:a_3=\frac{a_2}{2}=\frac{32}{2}=16$
For $n=4:a_4=\frac{a_3}{2}=\frac{16}{2}=8$
For $n=5:a_5=\frac{a_4}{2}=\frac{8}{2}=4$
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