1. Make h the subject:
      V = pr²h

3. Make x the subject:
     W = (ax + bx)²

4. Make b the subject:
    a² = b² + c²

5. Make t the subject:
    v = u + at

6. Make h the subject:
    A = 2pr² + 2prh

7. Make u the subject:
       

8. Make L the subject: