For Sharon, one of the most exciting aspects of landing a full$-$time job was being able to buy a different car! Even though she will be working in an urban area, she will need a reliable vehicle to travel to client locations outside the city. Sharon is trying to decide if she should buy a new vehicle or a slightly used vehicle, or lease a new$($er$)$ vehicle. She has had her eye on a dazzling blue SUV; it stares at her every time she drives by the lot. But she's not sure if she can justify its cost. Here are the costs and benefits she has gathered for each of these options: $[[,$Buy New,Buy Used,Lease Midnight$-$Blue SUV$],[$Monthly payment,$480,360,[[280$ plus$2$ per mile if$],[$over$],[10,000$ miles per year$]]],[$Time frame,$6$ years,$4$ years,$2$ years$],[$Warranty$,[[$Excellent for $100,000],[$miles$]],[[$Excellent for next $40,000$ miles$],[$only$]],$Excellent for length of lease$],[$Full coverage insurance,$210$ per month,$140$ per month,$185$ per month$],[$Operating cost$,0\mathrm{.}20$ per mile,$0\mathrm{.}20$ per mile,$0\mathrm{.}20$ per mile$],[[[$Expected mileage per$],[$year$]],13,800,13,800,13,800],[$Safety features,Maximum,Moderate,Maximum$]]($a$)$