hi I'm quite stuck on this question some help would be appreciated A doctor prescribes medication for a patient to be taken for 5 days. The first day...

hi I'm quite stuck on this question some help would be appreciated

A doctor prescribes medication for a patient to be taken for 5 days. The first day the patient takes 1000 mg of the medication, and then the amount is halved each successive day. Find the total amount of medication that the patient takes over the 5-day period (to the nearest tenth of a milligram)