Activity$-$based costing for a service company

Crosswinds Hospital plans to use activity$-$based costing to assign hospital indirect costs to the care of patients. The hospital has identified the following activities and activity rates for the hospital indirect costs:

$\backslash$table$[[$Activity$,$Activity Rate$],[$Room and meals,$$171$ per day$],[$Radiology$,$$$241$ per image$],[$Pharmacy$,$$$53$ per physician order$],[$Chemistry lab,$$99$ per test$],[$Operating room,$$700$ per operating room hour$]]$

The activity usage information associated with the two patients is as follows:

$\backslash$table$[[,$Abel Putin,Cheryl Umit$],[$Number of days,$3$ days,$10$ days$],[$Number of images,$2$ images,$7$ images$],[$Number of physician orders,$3$ orders,$5$ orders$],[$Number of tests,$3$ tests,$6$ tests$],[$Number of operating room hours,$4$ hours,$6$ hours$]]$

a$.$ Determine the activity cost associated with each patient.

Abel Putin $

Cheryl Umit $

b$.$ Why is the total activity cost different for the two patients?

apparently had a different condition that required more extensive treatment. Thus, the activity cost to is more than the activity cost of the other patient.