please explain the steps

Monte Services, Inc. is trying to establish the standard labor cost of a typical oil change. The following data have been collected from time and motion studies conducted over the past month. Determine the standard direct labor hours per oil change. (Round answer to 2 decimal places, e.g. 1.25.) Standard direct labor hours per oil change hours Determine the standard direct labor hourly rate. (Round answer fo 2 decimal places, e.g. 1.25.) Standard direct labor hourly rate $ Determine the standard direct labor cost per oil change. (Round answer to 2 decimal places, e.g. 1.25.) Standard direct labor cost per oil change $ If an oil change took 5.6 hours at the standard hourly rate, what was the direct labor quantity variance? (Round answer to 2 decimal places, e.g. 1.25.) Direct labor quantity variance $