Answer:
d - 7
Step-by-step explanation:
The word "difference" tells us that we will be using subtraction. Also, subtraction is not the same if you reverse the terms like, x - 2 and 2 - x are not the same. In your question it say "d and 7" so that's the order we use in the algebraic expression.
Answer:
2.25
Step-by-step explanation:

Step-by-step explanation:
might be option c is a correct answer of your given question
It is written as 0.00017 in ordinary form.