[tex]24\ \ \frac{mi}{h}=?\\\\ 1\ mile\ =\ \ \ 5280\ feet\\ 1\ hour\ \ =\ \ 3600s\\\\ 24*\frac{5280}{3600}=\frac{126720}{3600}=\boxed{35,2\frac{ft}{s}}\\\\
45\ \ \frac{mi}{h}=?\\\\ 1\ mile\ =\ \ \ 5280\ feet\\ 1\ hour\ \ =\ \ 3600s\\\\ 45*\frac{5280}{3600}=\frac{237600}{3600}=\boxed{66\frac{ft}{s}}\\\\[/tex]
