I would say option 3 hopefully im right!!
Absolute value is alwas positive
so all of them excet the 3rd one are false
|w|=0 has 1 solution
if the last one was |w|=1 then ther would be 2 solutions, -1 and 1
answer is |w|=0
Answer:
10number for a is a answer of that question
It should just be 2y. Hope it helps.