Matching a formula to a given context

Question 4

Andrew is 5 years younger than Claire. Let a be the age of Andrew and c be the age of Claire. Which statement is correct?

     
      check answer for question 4
                                                   

Question 5

The length (x cm) of a rectangle is 10 cm more than the width (y cm) of a rectangle. Which statement is correct?

 
      check answer for question 5