Suppose a chicken is injected with inulin, a solute that is effectively filtered, but is neither secreted nor absorbed. After some time, the inulin concentration measured in the blood is found to be 5mM, while the inulin concentration in the urine is measured to be 330mM. the flow rate of the urine through the ureter is 0.6 ml/hr. What is the glomerular filtration rate?