Is there away to place 29 books on the self so each has the same number of books

Item 1 solve for s. s+24=90 −114 −66 66 114

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25

Need this at the city museum, child admission is 6 and adult admission is 9.20. on tuesday, 132 tickets were sold for a total sales of 961.60. how many adult tickets were sold that day?