Oriole Company acc$$mulates 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$,7,990,$$$14,170,$March,$8,510,$$$14,721$