Answer:
82
Step-by-step explanation:
&&'&_555555555----&&&&---
-8x + 5y + 4
- 6x + 5y - 2x + 4 Group like terms
-6x - 2x + 5y + 4
= - 8x + 5y + 4
3 km = 3000 m
2*3000 = $6000