Leah had some money. After spending $100 on 3 cups and 7 plates, she is short of $4 to buy another cup. So, she bought another plate and had $6 left.<div>(a) How much did each cup cost?</div><div>(b) How much did Leah have at first?</div>
Mr Lee bought a number of shirts at an average price of $35 at a shop. He bought another 8 shirts which cost $50 each, and the average price of all the shirts became $41. Find the total number of shirts he bought.
