An office building has the dimensions shown. what is the volume of the building?

the correct answer is b.

this is because an open circle means < or > & since the line goes left it is < -3.

the next one has a filled circle so it can only be ≥ or ≤ and since the line goes right from 1 it is ≥ 1

hope that

there should be an link icon on the bottom of the text box you get. it looks like a paperclip!