Everything before and after the plus sign represents money. When all is said and done, the total amount of money is 200x/(9x +1) + 900
X is going to represent the business transactions conducted on the internet. The 900 must represent something else that has nothing to do with the internet.
So look at your answers. You are looking for something that accounts for sales not using the internet.
A is quite possible. It doesn't say so in the introduction to the question,, but it is a possible answer. Let's see what else turns up.
B. That can't be true. You are adding 200x/(9x +1 ) to 900 for the total. 900 is one thing, the term containing the "x"s is quite another.
C. False. The term containing the "x"s is the amount gained from internet business. The 900 has nothing to do with that.
D. 900 is money. It is not a number representing something else. D is false.
Answer: A
