Chapter 1, Problem 9P

Azelastine hydrochloride is an antihistamine nasal spray. A standard-size container holds one fluid ounce (oz) of the liquid. You are searching for this medication in a European drugstore and are asked how many milliliters (mL) there are in one fluid ounce. Using the following conversion factors, determine the number of milliliters in a volume of one fluid ounce: 1 gallon $\left(gal\right)=128oz,3.785\times {10}^{-3}$  cubic meters $(m^3)=1gal,and1mL={10}^{-6} m^3$ .