Note: the length limits indicate the upper bound. You can easily
write good answers using less space, and should try to do so. 

Chapter 9

Exercise 1:
Task 1: a quarter page, single spaced
Task 2: a quarter page, single spaced
Task 3: half a page, single spaced

Exercise 3:
Task 1: half a page, single spaced
Task 2: trees, with possibly a limited amount of text
        explicating the tree
Task 3: half a page, single spaced        
Task 4: half a page, single spaced   

Exercise 5:
Trees for 1,2,4,6 

Exercise 6:
One page, single spaced  

Chapter 10

Exercise 2: 
One page, single spaced  

Exercise 4:
Task 1: a quarter page, single spaced 
Task 2: half a page, single spaced    
Task 3: half a page, single spaced     

Exercise 6:
Task 1: a quarter page, single spaced        
Task 2: half a page, single spaced    
Task 3: half a page, single spaced    

Exercise 11: 
Task 1: half a page, single spaced    
Task 2: a quarter page, single spaced        
Task 3: half a page, single spaced