A pleual (lung) fluid is received in the lab for an RBC coun…

A pleual (lung) fluid is received in the lab for an RBC count. The tech makes a 1:10 dilution using saline.On each grid the tech counts 5 of the small RBC counting squares. On the first grid the tech counts 12 RBC. On the second grid the tech counts 18 RBC.What is the total RBC count per uL?