#### Answer

conditional - true
converse - true
inverse - true
contrapositive - true

#### Work Step by Step

The converse swaps the hypothesis and the conclusion.
If $x=5$, then $4x+8=28$.
True. There is no counterexample.
The inverse negates the hypothesis and the conclusion.
If $4x+8\ne28$, then $x\ne5$.
True. There is no counterexample.
The contrapositive both swaps and negates the hypothesis and conclusion.
If $x\ne5$, then $4x+8\ne28$.
True. There is no counterexample.