Level 3
The amount of Isabelle's salary to Sarah's salary is 2 : 9. If Isabelle spends 35 of her salary, she will have $902 less than Sarah. How much salary does Sarah have?
Level 2
A bottle of syrup is 23 full. When 18 of the syrup is poured out, there is 70 mℓ of syrup in the bottle. Find the capacity of the bottle in mℓ.
Level 3
Adam has some stickers. 35 of the stickers are sold in the morning. 34 of the remainder are sold in the afternoon.
There are more 30 more stickers sold in the morning than in the afternoon.