Answer:
9
Step-by-step explanation:
First, find x. Since x is the average of the three number, add the three up and then divided by three. Thus:
[tex]x=\frac{13+-16+6}{3}=3/3=1[/tex]
y is the cube root of 8. Thus:
[tex]y=\sqrt[3]{8}=2[/tex]
So:
[tex]x^2+y^3\\=(1)^2+(2)^3\\=1+8=9[/tex]
