The wall is 9 ft by 12 ft.
9 × 12 = 108
The area of the wall is 108 ft².
Not sure what the width of the wallpaper is for <:(
Answer:
○ 
Step-by-step explanation:

I am joyous to assist you anytime.
Answer:

Step-by-step explanation:
Equation of straight line in point slope form is given as

Here

Therefore,


Answer:
the answer is number 3)2
Step-by-step explanation:
subtract the both
Answer:

Step-by-step explanation:
As long as the two equations represent the same straight line on the coordinate plane (they overlap), there will be infinite many intersections and infinite number of solutions.