Assume a single firm in a purely competitive industry has variable costs as indicated in the following table in column $2.$

Complete the table and answer the questions.

$\backslash$table$[[\backslash$table$[[\backslash$table$[[(1)],[$Total$],[$product$]]]],\backslash$table$[[(2)],[$Total$],[$var$.$ cost$]],\backslash$table$[[(3)],[$Total$],[$cost$]],\backslash$table$[[(4)],[$AFC$]],$AVC,$\backslash$table$[[(6)],[$ATC$]],$MC$],[0,$$$0,$$$40,$$$,$$$,$$$,],[1,55,,,,,$$