Explain how to solve

The h$-$Q curves for two pumps $("$A$"$ and $"$B$")$ and the system they serve are shown. The operator is running the two pumps in series.

a$)(4-$points$)$ Accurately plot the combined pump curve on the above axis of the two pumps.

b$)(2-$points$)$ The system flow rate is:

$Q=$

$f\frac{t^3}{sec}$

c$)(2-$points$)$ The system head is:

$h_{\text{s}\text{y}\text{s}\text{t}\text{e}\text{m}}=$

d$)(2-$points$)$ The system static head is:

$h_{\text{s}\text{t}\text{a}\text{t}\text{i}\text{c}}=$

$ft$

e$)(2-$points$)$ The $2-$pump shut$-$off head is:

$h_{\text{s}\text{h}\text{u}\text{t}-\text{o}\text{f}\text{f}}=$

f$)(2-$points$)$ The head of pump $"$A$"$ with $2-$pumps running is: $h_A=$