C1 – Remaining shelves = 8 shelves – 3 shelves = 5 shelves Total books = 5 shelves × 120 books per shelf = 600 books
C2 – Sold in the morning: 28 boxes ÷ 2 = 14 boxes
Sold in the evening: 28 boxes – 14 boxes = 14 boxes
Total cupcakes = 14 boxes × 24 cupcakes per box + 14 boxes × 24 cupcakes per box = 672 cupcakes
C3 – Total marbles = 15 bags × 56 marbles per bag = 840 marbles
C4 – Questions answered correctly = 375 points ÷ 25 points per question = 15 questions
