the answer of this question is : (a) 0.021 m3 /s (b) 198 kPa (gage)

PLEASE ONLY POST AN ANSWER IF IT MATCHES THE ANSWER I PROVIDED ABOVE!!!!!

Water (=1000kg/m3) enters the piping system shown below through section 1 at a volume flow rate of 0.03m3/s and pressure of P1=2105Pa (gage) and exits through sections 2 and 3 (at unknown pressures). The mercury (=13,550kg/m3) U-tube manometer shown is used to measure the flow rate through section 2 and reads h=13cm. The pipe lengths shown in the figure are a=0.5m,b=2.0m, and c=0.5m. All pipes in the figure have diameter D=7cm. Neglecting frictional losses in the pipes and fittings: (a) Determine the volume flow rate through section 2. (b) Calculate the gage pressure at point A