Given below is the flood hydrograph from a storm on a drainage area of $2\mathrm{.}5m{i}^2.($Total: $20$ points; modified

from Chow et al$)$

Note: Excess rainfall of nearly equal intensity occurred continuously during the $4^{th},5^{th}$ and $6^{th}$ hours. The point

of the inflection of the falling limb of the flood hydrograph happened to hour $11.$

a$)$ Plot the Discharge vs time; using a log scale for discharge.

b$)$ Determine the total baseflow in cfs using the Constant Discharge Method.

c$)$ Calculate the direct runoff

d$)$ Determine the total precipitation in inches that fell on the basin.