Answer:
Total bill = $88.50
Step-by-step explanation:
Amount of bill = $75
Tip = 18%
Amount of tip = 
Amount of tip = 
Amount of tip = $13.50
Total bill = Bill + Tip
Total bill = 75 + 13.50
Total bill = $88.50
Step-by-step explanation:
4)180-57.8=123.3
5)180-116.4=64.6
If the solution of x is 3, then the solution of 6x would be 18, because 3*6=18. :)