Expert: Richard J. Raridon - 8/27/2005

Question
ok...lets cut the crap... i have typing in my  questions and people keep on writeing back "SORRY bla bla blah WAS UNABLE TO ANSWER YOUR QUESTION". now.... are you going to be able to help me or not?
anyways here are my questions (give me ALL the answers to EVERY question)solve each problem if possilble.if it is not possibletell why.
5.the sum of two numbers is 25.three times the greater subtracted from seven times the lesser equals 15.what are the numbers?
8.a photographer is arranging an eighth grade class for a class picture.he put 10 people in the first row he then put 6 more people in each row in front of it.how many students are in the eighth grade if there are 9 rows?
9.mrs.rhodes had her kindergarden class sorting a pile of buttons. when they separated the pile into groups of fives there were 3 left over.when when they serparated the pile ito groups of 7 there 3 left over.when they separated the pile into groups of 9 there was none left over.what is the least number of buttons the students could have?

Answer
5. Let the numbers be x and y. Then x+y = 25 and 7y-3x = 15.
So the numbers are x=16 and y=9
8. You should be able to add up 10+16+22+28+34+40+46+52+58
9. The number for the first group has to be in the series
8,13,18,23,28....
the number for the second group has to be in the series
10,17,24,31,38...
the number for the third group has to be in the series
9,18,27,36,45...
The first number to occur in all three groups is 108