Evaluating Grocery Stores Using Efficiency Ratios companies sell roughly the same mix of products and face about the same inventory costs.

$\backslash$table$[[$Fiscal $2018,$Publix,Kroger,Village Super Market$],[$Gross profit margin $\%,32\mathrm{.}6\%,23\mathrm{.}9\%,29\mathrm{.}9\%],[$Number of stores at year$-$end,$1,332,3,040,33],[$Sales $($$ per square foot$),$$$703,$$$745,$$$1,282],[$Sales per store $($$ millions$),$$$33,$$$48,$$$59],[$Average store size $($thousand square feet$),47,65,46],[$COGS $($per square foot$),$$$495,$$$583,$$$933],[$Days inventory outstanding,$29\mathrm{.}2,28\mathrm{.}3,13\mathrm{.}9]]$

Required

a$.$ On average, which company has the freshest food

b$.$ Which company is least efficient with its space?

c$.$ Which company has the lowest prices?

d$.$ Which company is busiest:

e$.$ Which company has the smallest stores?