The correct answer is: $22.37\text{ mph}$
Explanation
To convert km/h to mph use the factor $1\text{ km}=0.621371\text{ mi}$ (or $1\text{ mi}=1.609344\text{ km}$). Multiply the speed in km/h by $0.621371$.
Steps:
- Start with the speed: $$v=36\text{ km/h}$$
- Convert using the factor: $$v=36\text{ km/h}\times0.621371\text{ mi/km}=36\times0.621371\text{ mph}$$
- Multiply and round: $$36\times0.621371=22.369356\approx22.37\text{ mph}$$
Therefore, $36\text{ km/h}\approx22.37\text{ mph}$.