35-60 students are taking math.
the answer for the second equation is (4,0)
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
12 dolars one is cheaper becasue 3 pairs is 6 means is sock is 2 while the 12 is cheaper