Question 269986
1.) if a car is new, then it has seat belts (WOULD NEW CAR BE IN THE SMALL CIRCLE AND SEAT BELTS BE IN THE BIG CIRCLE?) 

The bigger circle would represent the set of all cars (both those with (new) and those without seatbelts). Since those with seatbelts are a subset of all cars these could be represented by a circle entirely inside the car circle.

The second problem is very similar. There's the bigger set (larger circle) of all quadrilaterals (that is all 4-sided figures) and the subset (smaller circle)of quadrilaterals with four equal sides (that is squares).  

Whenever we say all "a" are "b"  the set of a's are a subset (smaller circle) of the b's (larger circle).