Please help on number 3 please and thank you :)

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

If you have 12 feet of string and you cut it into equal length of 5 inches each how much string will be left

Tyler reads 2/5 of a book on monday, 1/3 of it on tuesday, 2/9 of it on wednesday, and 3/4 of the remainder on thursday. if he still has 14 pages left to read on friday, how many pages are there in the book?