18x/18 = 2/3 • 18
Flip reciprocal of 18 which is 1/18 so it would be 2/3 • 1/18 the 2 and 18 can be simplified when cross multiples so it would then be 1/3 • 1/9 which is x=1/27
The answer should be A, if he marked it up 70% just multiply 66 by 1.7 for your answer.
The price changed by $42 over the course of seven weeks
The answer to this is 50 x 10 the 9th power.
Hope this helps :)
Answer: The simplified form is 
Step-by-step explanation:
Since we have given that

As we know the "Exponential law":

So, it becomes

Now, at last it becomes,

Hence, the simplified form is 