Question

http://prntscr.com/310p7s

Answer 1

@hoblos

Answer 2

Need Help Please

Answer 3

yes I can help

Answer 4

I would help, but I'm not as bright as the sun....xDD

Answer 5

|a| < b is equivalent to -b<a<b
so you must find this form of the inequality

here you have : 21.88 < w < 22.12
if you subtract each term by 22 you will get
-0.12 < w-22 < 0.12
and this can be written as |w-22| < 0.12