Where did I go wrong?

[dark trench]

54 x4 = 216 = 6 x 6 x6

\sqrt[3]{216} = 6

6 + 7 =13

Did you misinterpret the degree of the root and the scope of its effect?

[plain current]

I think I got question three: 5x2=10, 12-10=2, sqrt 144 = 12, 12/2=6 7x6=42

[hasty otter]

!noanswers