(3)=17-6=11(4)=-3*4-28/7=-12-4=-16(5)=-9-125*4/25-18/9=-9-20-2=-3115.2&(-3)&4=(2&(-3))&4=(-3*2/(2-3))&4=6&4=6*4/(6+4)=2.416. 距出车地点的距离=|+15-4+13-10-12+3-13-17|=|-25 | =25总路程为=|+15|+|-4|+|13|+|-10|+|-12|+|3|+|-13|+|-17|=87km耗油 87*0.4=34.8L