Answer:
n= 1.25
Step-by-step explanation:
multiply both sides by 3 giving you 1.25
Hi if you showed a picture of the circle graph I would be happy to answer your question.
Answer:
see graph of y=3/4 x-4
Step-by-step explanation:
Assuming you mean

Below is a graph of that one. The slope is 3/4 and the interception with the y axis is at y=-4. The equation is in its normal form y=ax+b with a=3/4 (slope) and b=-4 (y intercept), so no conversion needed.
You have to be careful on how you write these equations down. It might very well be that you meant:
or 
However, those are more complex so I'm hoping for the first one... ;-)
The reciprocal of -13/7 should be -7/13
X-9=12
x-9+9=12+9
You need to add 9 to each side of the equation.
x=21