The answer is object permanence.
Object permanence refers to the ability to understand that an object is still present and physically exists even if it is hidden out of sight. In this example, your niece lacks object permanence since she does not understand that you are behind the blanket even though you cover yourself with it or you are temporarily.
Well 4.3x3= 12.9
And 45x3= 135
So ones a decimal and ones not
The prime minister of Ghana was the head of government of Ghana from 1957 to 1960 and again from 1969 to 1972. Wikipedia
First holder: Kwame Nkrumah
Abolished: 13 January 1972
Final holder: Kofi Abrefa Busia
