The letters that form the word algebra are placed in a bowl. what is the probability, as a percent, of choosing a letter other than "a" and then choosing an "a"?

Step-by-step explanation:

There are 7 letters in algebra. Two of them are "A"

The probability of choosing "A" on the first try is

Assuming you remove the letter after choosing it:

If you remove the A, then the second time around you have 6 letters with one of them being A

So, your chances of picking A is

Multiply the probabilities together.

Assuming you don't remove the letter after choosing it:

You have the same probability again,

Square the probability:

expression #3 is not equivalent. the others are.