Answer
See below.
Work Step by Step
According to the exercise:
$x_1=f(x_0)=f(6)=\frac{2}{3}(6)+5=9$
$x_2=f(x_1)=f(9)=\frac{2}{3}(9)+5=11$
$x_3=f(x_2)=f(11)=\frac{2}{3}(11)+5=\frac{37}{3}$
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