70 / 50 = 1.4
1.4 * 1.4 = 1.96
So, the stopping distance increases by a factor of 1.96
170 feet * 1.96 = 333.20 feet
The answer is C), 834, 834.19, 834.2, 834.29
I know this is late, but I hope it was helpful!
It is 546.4583333333333, which would simplify to 546.46 if to the hundredths place or 546.5 to the tens place
