ABC$-$A Service Application professional provides medical services or aid to a resident. The accountant has gathered the following data for the most recent annual period:

$\backslash$table$[[$Resident$,\backslash$table$[[$Annual$],[$Classification$],[$Resident Days$]],\backslash$table$[[$Annual$],[$Assistance Hours$]],\backslash$table$[[$Number of Assistance$],[$Contacts$]]],[$A$,18,00,9,100,27,000],[$B$,10,000,22,500,31,000],[$C$,5,500,23,000,27,500],[$D$,3,000,18,400,24,000],[,36,500,73,000,109,500]]$

Other data

Required $($round answers to the nearest dollar$)$:

a$.$ Determine the total cost of a resident day using the current system.

$$ per day Note: Round your answers to two decimal places.

$\backslash$table$[[,$Class A$,$Class B$,$Class C$,$Class D$,],[$ABC Cost of a resident day,$$,112\mathrm{.}57$$$,159\mathrm{.}57$$$,217\mathrm{.}71$$$,487\mathrm{.}26$