Test, hurry, pencils and erasers

Mio has a big test today and she is in a hurry. For the test, she must bring at least two pencils and at least one eraser.

In her work drawer, she has \( 7 \) pencils and \( 4 \) erasers. Each pencil / eraser is unique. On how many ways can Mio get ready for the test?

Hints: Mio does not have to bring exactly two pencils and one eraser.

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