Respuesta :

[tex]\text{Speed}=\frac{Dis\tan ce}{Time}[/tex]

Speed = 7miles per hour

Distance = 28 miles

So,

[tex]\text{Time = }\frac{Dis\tan ce}{Speed}[/tex][tex]\text{Time}=\text{ }\frac{28miles}{7miles\text{ per hour}}[/tex]

Time = 4hours