To fight
...................
Answer:
The U.S. entered World War I because Germany embarked on a deadly gamble. Germany sank many American merchant ships around the British Isles which prompted the American entry into the war.
I'm not 100% sure this is the answer but I know they were successful in math.
<span />
Answer:
536
Explanation:
67 (number of pictures) x 8 (number of albums)