Area= width times height
Perimeter= all sides added together
1)
, 2) 
3)
, 4) 
5)
, 6) 
7)
, 8) 
9)
, 10) 
11)
12) 
Step-by-step explanation:
We need to solve each equation.
1) 
Solving:
Adding like terms:

Divide both sides by 11

2) 
Solving:
Adding like terms:

Divide by -8

3) 
Solving:
Adding like terms:

Subtract 9 on both sides:


Divide both sides by 4

4) 
Solving:

Divide both side by -7

5) 
Solving:
12r-1=11
Adding 1 on both sides

Divide both sides by 12

6) 
Solving:

7) 
Solving

8) 
Solving:

9) 
Solving:

10) 
Solving:

11) 
Solving:

12) 
Solving:

Keywords: Solving Polynomials
Learn more about solving Polynomials at:
#learnwithBrainly
Answer:
8.65
Step-by-step explanation:
Use a calculator and type "48.55 / 5.6"
Answer:
In the pic
Step-by-step explanation:
If you have any questions about the way I solved it, don't hesitate to ask me in the comments below =)
5x+100=10x
-5x on both sides (10x-5x=5x)
100=5x
divide by 5 on both sides (100/5= 20)
20=x