X - 1 < = 2....add 1 to both sides
x < = 2 + 1
x < = 3
This will have a closed circle (because there is an equal sign in the problem)...on 3, and all numbers to the left are shaded(because it is less then).
A calculator can show you the answer to these very quickly.

Answer:
<h2>x = -4 or x = -2</h2>
Step-by-step explanation:

Answer:
A≈3418.05
Step-by-step explanation:
2π(16)(18)+2π(16)^2=
3418.05280711