In how many distinct ways can the letters of the word READERS be arranged?

The letters of the word readers can be arranged in 1260 distinct ways.

Step-by-step explanation:

A word has n letters.

The are m repeating letters, each of them repeating times

So the number of distincts ways the letters can be arranged is:

In this question:

Readers.

Has 7 letters.

E repeats twice.

R repeats twice.

So

The letters of the word readers can be arranged in 1260 distinct ways.

the battle of gettysburg is considered the "high water mark" of the confederacy because it marked the greatest advance of the confederate forces against the union.