QuestionNext, to convert hours to seconds we will multiply by $1 \mathrm{hr} / 60 \mathrm{~min}$ and $1 \mathrm{~min} / 60 \mathrm{sec}$. First, to convert 175 km to meters we must multiply 175 km by $1000 \mathrm{~m} / 1 \mathrm{~km}$. Next, to convert hours to seconds we will multiply by 60 min and 60 sec . First, to convert 175 km to meters we must multiply 175 km by $1000 \mathrm{~m} / 1 \mathrm{~km}$. Next, to convert hours to seconds we will multiply by $1 \mathrm{~min} / 60 \mathrm{sec}$. First, to convert 175 km to meters we must multiply 175 km by $1000 \mathrm{~m} / 1 \mathrm{~km}$. Next, to convert hours to seconds we will multiply by $1 \mathrm{hr} / 60 \mathrm{~min}$ and $1 \mathrm{~min} / 60 \mathrm{sec}$.