How many 3 digits numbers have exactly one digit 5 in them?ji

How many 3 digits numbers have exactly one digit 5 in them?ji if n is a positive integer,how many of the ten digits from 0 through 9 could be the units digit of n^3? how many natural numbers whose ten digits are smaller than the ones digits are there from 10 to 99?翻译这句话. How many digits does the product 2516(25的16次方）*238（2的38次方）have? how many even three-digit integers haver the property that their digits ,read left to right ,are strictly increasing order? How many non zero digits are there in the hexadecimal number system?1.152.103.84.165.None of these Of the two-digit positive integers less than 20 how many have different digits翻译翻译〜〜 How many digits are needed to write all of the integers from 1 to 1000 inclusive?（请写明过程） 英语翻译In the integer 3589 the digits are all different and increase from left to right.How many integers between 4000 and 5000 have digits that are all different and that increased from left to right? How many different four-digit numbers can be formed by rearranging the four digits in 2004?A.4 B.6 C.16 D.24 E.81 第一题：if 1除以（2的11次方乘以5的17次方）is expressed as a terminating decimal,how many nonzero digits will the decimal have?A1 B2 C4 D6 E11第二题:The fabric needed to make 3 curtains sells for $8 per yard and can be purchased onl the entries in a 3X3 array include all the digits from 1 through 9,arranged so that the entries in every row and column are in increasing order.how many such arrays are there?这题的题目我可能有理解错了, In the integer 3589 the digits are all different and increase from left to right.How many integers between 4000 and 5000 have digits that are all different and that increase from left to right?这是一道填空题,不理解题目意思,求地道翻 一道SAT2数学题目：The product of 45,454,545,454,545 and 1,234 contains how many digits?A.14A.14B.15C.16D.17E.18 Of the three-digit integers greater than 700 ,how many have two digits that are equal to each other and the remaining digit different from the other two?a/ 90b/ 82c/ 80d/ 45e/ 36 how many how many, 有两道数学关于概率论的题目不太会 题目是很简单的英文 我就不翻译了,求高人帮助!1. I form a 3-digit number at random from the digits 1,2,3,..., 9; determine (work your answers out completely) the probability that my nu