Please answer asap. Thanks

PROBLEM Ethylene glycol at 50C is being pumped inside a 12.5 mm diameter pipe. The density and viscosity of ethylene glycol can be calculated using Perry's Handbook. It is required that the flow remains in the laminar regime, and thus the Reynolds number cannot exceed 2100. (Note: You must use the physical data from Perry's Handbook) a) What is the maximum allowed velocity in the pipe? b) It is desired to maintain the same Reynolds number of 2100 and same velocity as in part (a) using the same fluid at 10 C. What pipe diameter should be used