Melody

That is ok, many people are having this problem.  :)

Yes, that is right :)

It is not off-topic  

I would class an integer as a terminating decimal.    It certainly terminates.

I am not sure about the technicality of it. 

Are decimal numbers and base 10 numbers the same thing?  dec means 10 so I would think so.

I just found this definition online.

"A terminating decimal is usually defined as a decimal number that contains a finite number of digits after the decimal point."

Well, integers definitely do have a finite number of digits after the point, they have 0 digits after the point. So by this definition, an integer is a terminating decimal.

One question per post.

There is no question here.

You could just simplify it to      x-2y=10

Hi Jenny,

Your second answer is correct but not the first one.  :)

Hint:

Sin (pi/3)=?

cos(pi/3)=?

Let's see who I agree with.

Find the value of B - A if the graph of Ax + By = 3 passes through the point (-7,2) and is parallel to the graph of x + 3y = -5.

parallel to the graph of x + 3y = -5.

\(3y=-x-5\\ y=-\frac{1}{3}x-\frac{5}{3}\\ \text{So the gradient of the line = } -\frac{1}{3}\)

The line will be   

\(y=\frac{-1x}{3}+b\\ Sub\;\;in\;\;(-7,2)\\ 2=\frac{--7}{3}+b\\ 2-\frac{7}{3}=b\\ b=\frac{-1}{3}\\ y=\frac{-1x}{3}+\frac{-1}{3}\\ 3y=-x-1\\ 3y+x=-1\\ -9y-3x=+3\\ A=-9,\quad B=-3\\ B-A=-3--9=6 \)

It is good that you made your own answer.

I was just a bit put out because you said you were really struggling with the whole topic, not just this question, and I gave you a much more thorough teaching answer then I would normally bother to do.  

But in reality, you were not struggling with the whole topic and were capable of answering by yourself. 

The time I took to give you a full explanation could have been better used.

However, you do not need to feel bad about it, I know you didn't do it on purpose, you were just being a little dramatic.  (in your private message)

Cause that is how you felt at the time.

(it would have been nice to get a point from you though, not that the point itself is significant to me, but the show of gratitude always is)

I also am using stars and bars method.

53C3 =   23426 ways

We have 50 people divide by 3 bars.  That will create 4 groups of people

Now we have to decide where the 3 bars go.

Hence 53C3

I have no idea what this means either.   

Power of respect  ?? Sounds like nonsense.