Answer:
Gradient: m = 3
Step-by-step explanation:
m = change in y/change in x
m = 
m = 
m = 12/4
m = 3
The answer to this question would be 1/8 or in decimal form it would be 0.125. hopefully this helps with your question.
Step-by-step explanation:
first factorise the denominator
-1.1 should be the right answer
I think it would be $14 per book