Why are there things called unsolved mysteries? Shouldn’t they be unsolved in the first place to be called a mystery?

... good question

Explanation: H

 maybe because if its unsolved then no one knows, and if its not then one person knows but won't tell you?

yes based on alexanders actions he deserved the title of "the great". his empire covered about 3,000 miles and he was able to establish the empire over a 13 year period of time. he was able to conquer many different places. he also defeated the persians. he conquered egypt and developed a city and named it after himself.

question 10: the answer is c, to their constituents address a problem.

question 11: i think it would be domestic bills, which deal with american issues only and public bills, which affect the whole nation.