Chapter 2 - Solving Equations - 2-6 Ratios, Rates, and Conversions - Apply What You've Learned - Page 121: A

True

The statement is true. There are $5280$ feet in $1$ mile, and there are $3600$ seconds in an hour. Hence, a given unit expressed in miles per hour can be converted by multiplying it by $$ \frac{5280\text{ ft}}{1\text{ mi}}\cdot\frac{1\text{ h}}{3600\text{ s}} .$$