Here are the matches for the subjects on the left with what you study on the right:
1. Maths - c (25y + 32x = 51z)
2. Physics - d (E = mc²)
3. History - g (the 15th century)
4. Geography - f (the countries of the world)
5. PE - b (sport)
6. English - i (spelling)
7. Chemistry - e (H₂O)
8. Biology - a (animals and plants)
9. ICT - h (computers)