Help with my math homework due next week quick please

a) [tex]-4\geq x\geq -1[/tex]
x <= -4 and x >= -1
b) [tex]2<x\leq 4[/tex]
x > 2 and x <= 4
c) [tex]3 > x > 9[/tex]
x < 3 and x > 9
d) [tex]-5 \leq x < 0[/tex]
x >= -5 and x < 0
Hope this helps!