Solve given the following:

$4\text{'}$ Bottom Trapezoidal Channel $-3$:$1$ side slopes $n=0\mathrm{.}08S=0\mathrm{.}3\%V=3$ fps What is the depth of flow?

${18}^{\text{'}\text{'}}$ Circular Pipe $-n=0\mathrm{.}13S=1\mathrm{.}2\%$ What is the capacity of the pipe?

What is the flow rate $(Q)$ in cfs for the following area?

$250\text{'}$ travel time sheet flow $-2\mathrm{.}3\%$ slope, Avg. cultivated grass $-n=\mathrm{.}2$

${100}^{\text{'}}$ grassed waterway $-1\mathrm{.}6\%$ slope

$50\text{'}$ parking lot $-1\mathrm{.}0\%$ slope

$\backslash$table$[[$Cover$,$Area $($sf$),$C$],[$Impermeable$,66,200,0\mathrm{.}95],[$Single Family Residential,$88,500,0\mathrm{.}42],[$Parks$,57,500,0\mathrm{.}21]]$