How much money can I save? 我能省多少钱？

例句：
A:Good morning.
早上好。
B:Good morning.I need three adult tickets and four child tickets.I also need two senior tickets.
早上好。我需要三张成人票和四张儿童票，我还需要两张老年票。
A:Did you know that you qualify for a group discount?
您知道你们有资格享受团体优惠吗？
B:Oh,yeah?How much money can I save?
是吗？我能省多少钱？
A:You'll be saving $17.
您能省17美元。
B:Great.I'll take the group package.How much do I owe you?
太好了。我们要这个团体套票。我应该给你多少钱？
A:$67
67美元。

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