litty6768 litty6768 10-05-2018 Mathematics contestada Which of the following expressions shows the number of 8 character passwords that can be formed using letters and digits if the password must begin with a letter? a. 21x36 to the 7th power b.26x36 to the 7th power c.26 to the 5th power x 10 to the 3rd d.36 to the 8th power