Mary Stevens Earn $6 An Hour At Her Job And Is Entitled To Time-and-a-half For Overtime,and Double Time On Holidays.last Week She Worked 40 Hours Of Regular Time,6 1/2 Hours Of Overtime,and 8 Hours Of Holiday Time.how Much Did She Earn?

Mary earns $6 per Hr.  For over time, she earns time and half, i.e if she works for 1 OT(Over  Time) she gets 6+6/2 = 9$  if she works on holidays, she gets double time, i.e if she works for 1hr  she gets 2*6 = 12$  last week she worked 40 reg hours, 6.5 over time hrs and 8 holiday hrs.  => 40*6 + 6.5*9 + 8*12  =>> 240 + 58.5 + 96  =>>> $394.5