Solve the Problem $D$ , in Feet, It Takes a Car Travelling At

Multiple Choice

Solve the problem.
-The distance $D$ , in feet, it takes a car travelling at $x$ mph to come to a full stop after hitting the brakes is given by $\mathrm{D}=1.28 \mathrm{x}^{2}+0.057 \mathrm{x}$ . What is the stopping distance for a car travelling at 30 $\mathrm{mph}$ ?

A) $76.8 \mathrm{ft}$
B) $115.2 \mathrm{ft}$
C) $1200 \mathrm{ft}$
D) $1153.71 \mathrm{ft}$