重生洪荒之开天功德:math problem

来源:百度文库 编辑:中科新闻网 时间:2024/05/12 17:46:22
A round trip ticket cost $54.50 while a one way ticket cost $29.00. How much will be saved by buying 3 round trip tickets instead of buying one way ticket

29*6-54.5*3=10.5