Ty Trashun is adding acid from a buret to a flask. He needs to know the volume of acid that he adds. Ty...

Ty Trashun is adding acid from a buret to a flask. He needs to know the volume of acid that he adds. Ty measures the initial buret reading to be 2.45 mL. He measures the final buret reading to be 18.65 mL. What value should Ty report as the volume of acid added to the flask?