Sheridan Company accumulates the following data concerning a mixed cost, using miles as the activity level.

$\backslash$table$[[,\backslash$table$[[$Miles$],[$Driven$]],\backslash$table$[[$Total$],[$Cost$]],,\backslash$table$[[$Miles$],[$Driven$]],\backslash$table$[[$Total$],[$Cost$]]],[$January$,8,015,$$$14,100,$March,$8,540,$$$14,754$