Hannah is deciding between two truck rental companies. Company A charges an initial fee of $30 for the rental plus $2 per mile driven. Company B charges an initial fee of $100 for the rental plus $1 per mile driven. Let A A represent the amount Company A would charge if Hannah drives x x miles, and let B B represent the amount Company B would charge if Hannah drives x x miles. Write an equation for each situation, in terms of x , x, and determine the interval of miles driven, x , x, for which Company A is cheaper than Company B.