What was so significant about the Emancipation Proclamation? (I'm not sure about the answer so can someone help me?)

It was issued by Abraham Lincoln on September 22, 1862. And it declared that all slaves in the rebellious Confederate states would be free. But Lincoln didn’t actually free any of the approximately 4 million men, women and children held in slavery in the United States when he signed the formal Emancipation Proclamation the following January. The document applied only to enslaved people in the Confederacy, and not to those in the border states that remained loyal to the Union.

Hi i need help can some on help me

12 days because 1/4 is 25% of 100 if 100 is equal to 1 pound then multiply 3 by 4 which equals 12