Asked by Rock

For a college application, Macawi must select one of five topics on which to write a short essay. She must also select a different topic from the list for a longer essay. How many ways can she choose the topics for the two essays?
Answered by MathMate
For the first essay, she has <b>5</b> choices. For the second, she cannot repeat the same topic, so she is left with 5-1=<b>4</b> choices.
By the multiplication principle, she has ? choices?
Answered by Rock
20
Answered by MathMate
Correct!
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