Consider a pressurized pipe network with three pipes arranged in series. The characteristics of each pipe are summarized in the table. The flow at Node A is $5,000$ gallons per minute $($gpm$).$ The demand at Node B is $2,000gpm$ and the demand at Node $C$ is $1,500gpm.$ The pressure at Node $A$ is $90$ pounds per square inch $($psi$).$ The elevation of each junction node is listed in the table. The temperature of the water is $60F.$ Assume minor head losses can be neglected.

a$)$ Determine the flow in gallons per minute $($gpm$)$ and the velocity in feet per second $($fps$)$ in each pipe segment.

b$)$ Determine the friction head loss $h_{\text{f}\text{r}\text{i}\text{c}}$ in feet in each pipe segment.

c$)$ Determine the pressure head $y$ in feet and the pressure in psi at each junction node. Be sure to also account for the elevation head at each node in these calculations.

$\backslash$table$[[$Pipe$,\backslash$table$[[$Diameter$],[($inches$)]],\backslash$table$[[$Length$],[($ft$)]],\backslash$table$[[$Friction$],[$factor $f$

just need to know how to find pressure head and pressure please. Step by step.