Aubrey is deciding between two truck rental companies. Company A charges an initial fee of $80 for the rental plus $i per mile driven. Company B charges an initial
fee of $50 for the rental plus $2 per mile driven. Let A represent the amount
Company A would charge if Aubrey drives x miles, and let B represent the amount
Company B would charge if Aubrey drives 2 miles. Write an equation for each
situation, in terms of x, and determine the interval of miles driven, z, for which
Company A is cheaper than Company B.