Assuming that you got the numbers right and that I did my calculations right, then the answer is <span>2998.45 tons.</span>
I have to think this through.... I will get back later 2.222
Answer:

Step-by-step explanation:
Given

Perpendicular to 
Required
Determine the line equation
An equation has the form

Where

By comparison with 

Because the line is perpendicular to
, the following relationship exists
i.e. the condition for perpendicularity
Where m1 is the slope of the equation that passes through 
So, we have:


The line equation is then calculated using:

Where


So, we have:


Add 11 to both sides



<em>The B, C and D parts of your question are not clear.</em>
<em>Apply the same steps used in (a) above and you'll get your answers</em>