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HELP On the island of Mumble, the Mumblian alphabet has only $5$ letters, and every word in the Mumblian language has no more than $3$ letters in it. How many words are possible? (A word can use a letter more than once, but $0$ letters does not count as a word.)

 Mar 30, 2020
edited by helpppp  Mar 30, 2020
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Words  with  one letter  = 5

 

Words  with  two letters =  5^2  =   25

 

Words  with  3 letters   =  5^3   = 125

 

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 Mar 30, 2020

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