Posted by
**Kyle** on
.

Solve the compound inequality

-1 < X - 2 LESS THAN OR EQUAL TO 7

Your problem:

-1 < x - 2 ≤ 7

Add 2 to all three quantities to get x by itself:

-1 + 2 < x - 2 + 2 ≤ 7 + 2

1 < x ≤ 9

Solution set can be expressed this way using interval notation:

(1, 9]

-1<x-2<=7

add 2

1<x<9

area of each layer. i want to know want is a layer.