Question

If A subset of B n(A) =12, n(B) =20 then the value of n (B-A) = A.32 B. -8 C. 8 D. -32​

Answer 1

sry it's very urgent need of some pts195 countries

Countries in the World:

There are 195 countries in the world today. This total comprises 193 countries that are member states of the United Nations and 2 countries that are non-member observer states: the Holy See and the State of Palestine.

sorry