Use DeMorgan's Laws to write the negation of the expression below (without using the phrase"it is not the case that"): There is at least one slice of pizza in the box Use DeMorgan's Laws to write the...

Use DeMorgan's Laws to write the negation of the expression below (without using the phrase"it is not the case that"):

There is at least one slice of pizza in the box

Use DeMorgan's Laws to write the negation of the expression below (without using the phrase"it is not the case that"):

You didn't practice writing truth tables and you didnt study DeMorgan's Laws

Use DeMorgan's Laws to write the negation of the expression below (without using the phrase"it is not the case that"):

Everyone in Texas lost power during the recent winter storm.

I need all 3 answered please