Question 1141520
.


The third line in your calculation sheet is wrong.


I am not going to fix it for you, since


<pre>
        (a) your post has no question and you did not ask tutors to do it;  

    and

        (b) it is toooooo elementary, and you can easily do it on your own.
</pre>


Happy calculations !



If you still have questions, do not hesitate to formulate them ! !