Answer:
D
Step-by-step explanation:
6cm
First way: m+7m+m+7m
Second way: m(1+7+1+7) (factorize)
Third way: 2(m)+2(7m)
Answer:
I can't show the work, but the answer is 129 r 1.
Answer:
The answer is the option A
The line is horizontal. The slope is 
Step-by-step explanation:
we know that
The slope of the line parallel to the x-axis is equal to zero and is called a horizontal line
The slope of the line parallel to the y-axis is undefined and is called a vertical line
In this problem we have

This is a line parallel to the x-axis
therefore
Is a horizontal line with slope equal to zero