i want answer Q2 and Q3 please

[1]- A fluid flowing in a pipe has 1.05 in diameter. If the fluid has density, viscosity and volumetric flow rate are 62.3ft3lbm,1.2cP and 35gpm respectively. Calculate: a) The velocity. b) Reynolds number (uD) [2]- Find the following a) Drive an expression to find a pressure of methane gas at point b) If the temperature of methane is 100F, Calculate pressure c methane gas at point B. c) Calculate pressure of oil at point C. [3] - If the water is pumped down one well and the displaced oil which flows up through well exit (see the fig below), drive an expression to find a pressure of inlet water Pw needed to displace oil when the water/oil interfacial tension is applied