Answer:
Final answer is 
Step-by-step explanation:
Given expression is

Now we need to simplify that.








Hence final answer is 
First we must know 40 percent is equal to 0.4
Since sales were up 40 percent in addition to the 100 percent it must have originally we can mustiply 300,000 by 1.4,
After doing this operation the correct anser is 420000
Answer:
The residual of the point
in the equation
is 
Step-by-step explanation:
We have been given point
where
.
Now the equation is
.
Plugging the value of
in the equation of
,
we have to find the predicted value of y and
.
So y predicted
.
To find the residual point we have to subtract the actual value from the predicted value.
As actual value of
along with the points
.
Residual point = Actual value - Predicted value.

So the residual for the point
is
.