Step-by-step explanation:
The first one is B
x < 6 means that x cannot be 6, so only B or D works. But D is x > 6, so it's B
The second one is B
here, a filled circle means that x can be -6, so it's B or D again.
note that for these types of problems, choose a random number and see if it works. Let x = 0. Obviously, it's on the number line blue part, and it is greater than -6, so it's B
The third one is C
she has less than or equal to 45, but 45 is possible, so at most.
The last one is A. h > 4.5 means that h cannot be 4.5
So it's more, not at least.
So it's A
