Question

30 ÷ (–6)

Answer 1

Better learn your multiplication tables, sweetheart. And also that positive divided by negative is negative.

Answer 2

Negative times a Negative is a Positive bro. Just learn what 30 divided by 6 is and put a negative in front of the answer.

Answer 3

Learn it this way
Positive --> +
Negative --> -

(Positive) multiplied by (Positive)= (Positive)
(Positive) multiplied by (Negative)= (Negative)
(Negative) multiplied by (Positive)= (Negative)
(Negative) multiplied by (Negative)= (Positive)

and as @Mertsj said, learn your tables :)

Answer 4

The same thing above applies for division too :)