Afurlong is 1/8 of a mile. at 60 miles/hour, how long will it take to travel 1,440 furlongs?

Because 1 furlong = 1/8 miles, therefore
1,440 furlongs = 1440*(1/8) = 180 miles

At a speed of  60 miles/hour, the time taken to travel 1,440 furlongs is
(180 miles)/(60 miles/hour) = 3 hours

3 hours

I'm pretty sure it's b). i try drawing the functions out and b is the one that stands out or isnt a "line"

7.666270253x10 raised to the 18th power