Verified Answer :

smileyriley

The correct answer is 210 because if you go 60 miles an hour 60×3=180 and 60×1/2=30 so 180+30=210 so in total you go 210 miles

JcAlmighty

The answer is C. 210 mi

The velocity (v) is distance (d) divided by time (t):
v = d/t

v = 60 mph
t = 3 1/2 h = 3.5 h
d = ?

d = v t
d = 60 3.5 = 210 mi

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