Answer:

The number is 8 because 
And if you add 4, you get 20
Hence, the number is 8
Answer:
i believe the first one
Step-by-step explanation:
Answer:
0+2 or simply 2
Step-by-step explanation:
just imagine a "1" by the minus
-1(0-2)
Answer:
as per my point to view you can use a L.C.M so you can get the answer or you can try using a exponent way like 5by 1 as n value is 1 so it may give yoh answer