英语翻译1、The three sides of a triangle are of lengths 1,m,n,res

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英语翻译
1、The three sides of a triangle are of lengths 1,m,n,respectively.The numbers 1,m,n are positive integers,1 less than or equal to m less than or equal to n .Take n=9 and find the number of different triangles of the described kind.
2、Among grandfather’s papers a bill was found:72 turkeys $-67.9-.The first and last digits of the number that obviously represented the total price of those fowls are replaced here by blanks ,for they have faded and are now illegible .What are the two faded digits and hat was the price of the turkey?

请参考：
1.
一个三角形的三条边的长度是分别1、m、n.数字1、m、n是正整数,且满足1≤m≤n.现令n = 9,找出所有满足条件的不同的三角形.
2.
在祖父的账单上发现:72个火鸡付款付了_67.9_美元.但总价的第一个和最后一个数字的号码,因褪色,现在难以辨认,而要知道火鸡的总价必须知道这两个数字.那么褪色的两个数字分别是多少呢?火鸡的价格又是多少?
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