MELVIN MOWS A LAWN. THE FRACTION OF THE AWN THAT MELVIN HA MOWED SO FAR IS REPRESENTED BY THE SHADED MODEL SHOWN. MELVIN WILL MOW 3/10 MORE OF THE LAWN BEFORE HE TAKES HIS FIRST BREAK. WHAT FRACTION OF THE LAWN WIK MELVIN HAVE MOWED WHEN HE TAKES HIS FIRST BREAK?

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