Answer:
The slope of a line that is perpendicular to the given line is 
Step-by-step explanation:
The equation of the line in Slope-Intercept form is:

Where "m" is the slope of the line and "b" is the y-intercept.
Solve for "y" from the equation of the line
:

You can observe that the slope of this line is:

By definition, the slopes of perpendicular lines are negative reciprocal, then, the slope of a line that is perpendicular to the give line, is

Answer:
28 ft
Step-by-step explanation:
the perimeter of the rectangle is 28 feet
Answer:
3.5 or 3 and a half of a apple
Step-by-step explanation:
You just divide 7 by 2
Answer:
x=5
y=-2
Step-by-step explanation:
I just took this!
Hope I helped