The call letter of a radio station must have 4 letters.The first letter must be a K or a W. How many different station call letters can be made if repetitions are not allowed? *(If repetitions are allowed?)*

Question

The call letter of a radio station must have 4 letters.The first letter must be a K or a W. How many different station call letters can be made if repetitions are not allowed?  *(If repetitions are allowed?)*

*Important

Ms. Sue · Answer

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Ellen · Answer

thank you for your help