a doctor orders a dosage of 10 mL of medicine every 6 hours for 1 week. How many fluid ounces of medicine should be purchased? Round up to the next whole fluid ounce.

2 answers

4 doses/day * 7 days * 10mL/dose * 1oz/29.6mL = 9.5 oz

or, 10 fl oz
10 * 4 * 7 = 280 mL

1 mL = 0.033814 oz.

280 * 0.033814 = 9.467 = 10 oz.