Respuesta :
1680 ft./60s
28 ft in a second, so multiply 28 by 60 and you get 1680.
So if they can do [tex]\frac{28 ft}{1 s}[/tex], you need to multiply 28 by 60 to cancel out the seconds,
[tex]\frac{28 ft}{1 s}[/tex] x [tex]\frac{60 s}{1 }[/tex]
Multiplying 28 and 60 together gives you,
1680 ft