The correct answer is: $16.907\text{ US fl oz (approximately)}$ (also $17.598\text{ Imperial fl oz (approximately)}$).
Explanation
Most people use US fluid ounces unless otherwise specified. I’ll show both common conversions.
Steps:
- Conversion factor (US): $$1\ \text{US fl oz}=29.5735295625\ \text{mL}$$
- Compute (US): $$500\ \text{mL}\times\frac{1\ \text{US fl oz}}{29.5735295625\ \text{mL}}=\frac{500}{29.5735295625}\ \text{US fl oz}=16.90701135\ \text{US fl oz}$$
- Round: $$\approx16.91\ \text{US fl oz}$$
Quick note (Imperial):
- $$1\ \text{Imp fl oz}=28.4130625\ \text{mL}$$
- $$500\ \text{mL}=\frac{500}{28.4130625}\ \text{Imp fl oz}\approx17.598\ \text{Imp fl oz}$$
Therefore, 500 mL ≈ $16.91\ \text{US fl oz}$ (≈ $17.60\ \text{Imperial fl oz}$).