有几个号码150开头 结尾99的

指的是手机号码么？

150xxxxxx99如果是这样的话，利用排列组合知识是可以算出来的。这里打不出方程式。每一个位数均有10个，那就是有10的7次方个这样的电话号码。也就是100000000个。答案为1亿。

如果是普票，那可以直接在开票机上操作，直接冲红就行。如果是增票，隔月就比较麻烦，当然只是麻烦，没什么难度。内容互换不是什么问题，开错发票可以是很多理由。需要和专管员打个招呼，然后给收票方联系，要他出具该增值税发票没有抵扣的证明，让他去他的税务局就可以解决。然后让他单位出具退票说明以及没有抵扣该票进项税的说明并加盖公章，每个地区的格式不同，需要和你专管员联系什么格式最好。然后你单位也同样出具这份说明，拿上两家单位的说明和对方单位税务局出具的增值税未抵扣说明情况书去你的税务局申请红字冲销。

本人实际操作过，以上应该是最正规没后遗症的流程。

Hello, I'm XXX, 99 the owner of the restaurant. That restaurant is excellent employee tension want to go abroad for further study, I am very pleased and gratified. Such a progress of young people should have a more brilliant future for higher education. Therefore, I am honored to strongly recommend this excellent school youth. She graduated from high school came to my restaurant when the waiter,she is serious, hard-working, and the relationship between colleagues get along very well, into thepost was soon promoted to foreman, during her captain, there has never been a customer complaint. Now, as the outstanding staff restaurant, tension work seriously, responsible, hard.Set an example for all my colleagues. Effort to get, so he was named the restaurant employees,and enjoy the bonuses. Although to some extent, so the outstanding staff will be on the road is my study in the restaurant's losses, but considering his future, I am still not hesitate to support his studies went to your school. Sincerely hope that your school will also support him, to give him achance to improve their dreams

这是百度翻译的

你好，我是XXX，99餐厅的老板。这家餐厅是优秀员工紧张想要出国深造，我感到非常高兴和欣慰。这样一个上进的年轻人应该有更高的教育更辉煌的未来。因此，我很荣幸能强烈推荐这个优秀的学校青年。她高中毕业来到我的餐馆当服务员，她是认真的，勤奋工作，与同事之间的关系相处得很好，到了后很快就被提升为领班，在她的队长，从来没有一个客户投诉。现在，作为优秀的员工餐厅，紧张工作认真，负责，努力。我所有的同事们树立一个榜样。努力得到的，所以他命名的餐厅员工，并享有高额奖金。虽然在一定程度上，如此优秀的员工将在道路上是我在餐厅的损失的研究，但是考虑到他的前途，我依然毫不犹豫地支持他的研究去你的学校。真诚地希望贵校能同样支持他，给他一个机会来提高自己的梦想

---