Circle each of the square numbers in this list 1,4,5,9,17,21,36,49,59,82,110,122,1 44

Compare the subtraction problems 6/8 - 5/8 = 1/8 and 6/9 - 7/9 = 1/9 why is the answer to the first problem positive and the answer to the second problem negative

At a book fair, joe bought 24 books at 3 for $5 and had $2 left. how much money did he have at first?

In a sale there is 25% of all prices a chair costs £45 in sale how much was it before the sale