180 ≥ 45 + 15x
-45 -45
135 ≥ 15x
9 ≥ x
x ≤ 9
Answer: D
66 < 2x + 28
-28 -28
38 < 2x
19 < x
x > 19
Answer: C the answer could also be B
11 < 5 + 2x
-5 -5
6 < 2x
3 < x
x > 3
Answer: E the answer could also be A, B, and C
-30 ≥ 6 - 4x
-6 -6
-36 ≥ -4x
9 ≤ x
x ≥ 9
Answer: A
[tex]\frac{x}{12}[/tex] - 4 ≥ 5
+ 4 + 4
[tex]\frac{x}{12}[/tex] ≥ 9
12[tex](\frac{x}{12})[/tex] ≥ 12(9)
x ≥ 108
Answer: B
