Slacks implies pants of certain materials which are not part of a suit (jeans are not slacks, and you would not refer to the pair of trousers that came with a suit as slacks.) It is also more common to use slacks to refer to pants worn by women, while men would wear trousers.
Health care safety net providers are those that have a legal mandate or mission to offer medical care to all patients, regardless of their ability to pay, and have a substantial number of patients who are uninsured or on Medicaid.
Therefore, it's a good idea to have the same level of coverage for all of your cars. Medical payments, no-fault or personal injury protection coverage usually pays for the medical expenses of the injured driver and passengers in your car. There may also be coverage if you are injured by a vehicle as a pedestrian. Uninsured motorists coverage pays for your injuries caused by an uninsured driver or, in some states, a hit-and-run driver. In some states, there is also uninsured motorist coverage for damage to your vehicle.