Ineed to know how to answer the question

Always, true, hmm

b<0 and a>0

so therefor b is less than a
b<a is always true

sometimes true
b+2=a is sometimes true
it is true for b=-1 and a=1 but false for b=-2 and a=3

never true is a=b

always true:
b<a

sometimes true
b+2=a

never true
a=b or b>a