Level 3
Cupcakes were sold at 4 for $2. Croissants were sold at 3 for $5. Linda bought 8 cupcakes and 12 croissants. How much did she pay for the cupcakes and croissants she bought?
Level 3
A bicycle shop has an equal number of bicycles and tricycles. The total number of wheels is 480. How many tricycles does the bicycle shop have?