Given the following data:

$=20\mathrm{.}9\%$

$k=275md($average reservoir permeability, presumed the same for the aquifer$)$

$=0\mathrm{.}25cp$

$c_t=610-6{}^{-1}$

$h=19\mathrm{.}2ft$; area of reservoir $=1216ac$

Estimated area of aquifer $=250,000ac$

$=180$

Finite $-$ no flow aquifer boundary

Calculate:

a$.$ The reservoir radius

b$.$ The equivalent aquifer radius

c$.$ The initial encroachable water in place at the initial pressure

d$.$ The productivity index of the radial aquifer

e$.$ The cumulative water influx

$\backslash$table$[[$Time$,$ days,P ${?}_{R,}$