How do you write the negation of these expressions?

Question

1.r or ~t

2.~p and k

3.~k or ~m

Answer 1

1. ~r and t

2. p or ~k

3. k and m

Remember, just put ~ in front of everything without it, take away the ~ from everything that does have it, change "or" to "and" and "and" to "or"

Answer 2

1. ~r and t

2. p or ~k

3. k and m

Answer 3

1. ~r and t

2. p or ~k

3. k and m

Just make everything opposite