Question

To drive safely, the air pressure in your tires should be between 20 and 30 psi. Write this as an absolute value inequality, with x as the air pressure.

Answer 1

here is a general way of solving such problems:

|x-a|<=b

-b<=x-a<=b
in your case
-b+a=20
b+a=30
2a=50
a=25
b=5
so it's
|x-25|<5

Answer 2

<= i meant

Answer 3

Thanks.