Answer:70
Step-by-step explanation:
You multiply all three numbers.
Answer:
The slope is 
Step-by-step explanation:
Take the general equation of a straight line 
Here
is the slope of the line.
So let's get the equation of the line in the question in the same form.

Add
to both sides: 
Add
to both sides: 
Divide by
to get it into the general equation: 
Now compare it to the general equation to find the value of
. The value of
is the coefficient of
which we can see is 
Answer: You find midpoint by adding the two x values together and dividing by 2, then adding the two y values together and dividing by two.