Answer:
a. -5 > 2 (This is false because -5 is not greater than 2.)
b. 3 > -8 (This is true because a positive is greater than a negative.)
c. -12 > -15 (This is true because -12 is closer to 0 than -15 on the number line.)
d. -12.5 > 12 (This is false because -12.5 is further away from 0 than -12.)