Answer:
Number 3 and 4 are correct, but I have no clue about 1 or 2.
Explanation:
I'm just gonna start with number 4
if you put 7/2 into decimals you get 3.5 7/2 is greater than 3
number 3. -4 is in the negative zone, so it is less than 15 which is positive
if I were you, I would guess that number 1 is false. but i cant be sure