Liability insurance is an insurance coverage that protects a person against financial losses due to an accident that can cause bodily injury and property damage to others while the person is driving his own vehicle.
Hence, Liability insurance coverage pays for injury or damage that the insured driver causes to other people or their property.
Step-by-step explanation: 77+82+73= 232. So you need an 80 for average. So what you have to do is 80x4 and that equals to 320. last step is to subtract 320-232 and you get 88. 77+82+73+88=320.