I love Genesis. M. free point i'm done with 9+1+5+1+10+5+1

Which three lengths could be the lengths of the sides of a triangle? 21 cm, 7 cm, 7 cm 9 cm, 15 cm, 22 cm 13 cm, 5 cm, 18 cm 8 cm, 23 cm, 11 cm

Solve the inequaliy: (x^2+2)(x−2)^2(6−2x)> 0

For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =