## Algebra 1: Common Core (15th Edition)

C; $22ft/s$
Use a conversion table to convert miles per hour into feet per second. $\frac{15mph}{}$|$\frac{5280ft/hr}{1mph}$|$\frac{1ft/s}{3600ft/hr}$ Multiplying across the top and bottom gives us $\frac{79200}{3600}ft/s$, which reduces to $22ft/s$