I'm pretty sure that the answer is D!! Hope this helps you!!!
Answer:
Slavery played the central role during the American Civil War. The primary catalyst for secession was slavery, especially Southern political leaders' resistance to attempts by Northern antislavery political forces to block the expansion of slavery into the western territories
Answer:
A. (y/2) - 5, B. 3
Explanation:
Lets assume that the total number of pencils is y.
Katie gives Maggie half, i.e. = 
Hence Maggie has
pencils
If Maggie keeps 5 pencils and give the rest to Jamil, the expression for the number of pencils Maggie gives to Jamil therefore is;
Expression of pencil given to Jamil = (y/2) - 5
B.
To get the number of pencils Maggie gave to Jamil if Katie had 16 pencils, simply substitute y as 16.
(16/2) - 5
No of pencil given to Jamil = 8 - 5
= 3