Respuesta :

Used a speed formula.

s=d/t

s=30miles/2hours

Answer is= 15 miles per hour.

Hope it helped you.
Formula
d = r*t

Sub and Solve
d =30 miles
t = 2 hours
r = ?

30 = r * 2 Divide by  2
30/2 = r
r = 15 
The units are in miles per hour.

r = 15 miles per hour.