Final answer:
The original statement is p → q. The inverse of the original statement is -p → -q. The contrapositive of the original statement is also -p → -q.
Step-by-step explanation:
The original statement is p → q, where p represents a number being negative and q represents the additive inverse being positive.
The inverse of the original statement is -p → -q, where -p represents a number being positive and -q represents the additive inverse being negative.
The contrapositive of the original statement is also -p → -q.