Answer:Well All i know is that the answer is not C I'm sorry I dont know the correct answer but I know for a fact that the answer isn't C
Step-by-step explanation:
Answer: 0.5
Step-by-step explanation: it should be but wait for other answers
The relationship between the cost of books and pens is an illustration of linear equation.
The linear equation is (a) 
From the question, we have:
x exceeds 2 times y by 10
Rewrite as:
x exceeds 2y by 10
Exceed means plus (+)
So, we have:

Equate the above equation to 0

Hence, the required equation is (a) 
Read more about linear equation at:
brainly.com/question/11897796
y=2x-4+3 okayyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy